From Wikipedia, the free encyclopedia
"The Gerry-mander" first appeared in this cartoon-map in the Boston Gazette, March 26, 1812.
Gerrymandering in the United States has been used to increase the power of a political party. Gerrymandering is the practice of setting boundaries of electoral districts to favor specific political interests within legislative
bodies, often resulting in districts with convoluted, winding
boundaries rather than compact areas. The term "gerrymandering" was
coined by a review of Massachusetts's redistricting maps of 1812 set by Governor Elbridge Gerry that was named because one of the districts looked like a salamander.
In the United States, redistricting takes place in each state about every ten years, after the decennial census. It defines geographical boundaries, with each district within a state being geographically contiguous and having about the same number of state voters. The resulting map affects the elections of the state's members of the US House of Representatives
and the state legislative bodies. Redistricting has always been
regarded as a political exercise and in most states, it is controlled by
state legislators and governor. When one party controls the state's
legislative bodies and governor's office, it is in a strong position to
gerrymander district boundaries to advantage its side and to
disadvantage its political opponents.
Since 2010, detailed maps and high-speed computing have facilitated
gerrymandering by political parties in the redistricting process, in
order to gain control of state legislation and congressional
representation, and to potentially maintain that control over several
decades even against shifting political changes in a state's population.
Gerrymandering has been sought as unconstitutional in many instances.
Even as redistricting can advantage the party in control of the process,
political science research
suggests that its effects are not as large as critics may say. It does
not necessarily "advantage incumbents, reduce competitiveness, or
exacerbate political polarization."
Typical gerrymandering cases in the United States take the form
of partisan gerrymandering, which is aimed at favor in one political
party or weaken another; bipartisan gerrymandering, which is aimed at
protecting incumbents by multiple political parties; and racial
gerrymandering, which is aimed at weakening the power of minority
voters.
Gerrymandering can also recreate districts with the aim of
maximizing the number of racial minorities to assist particular
nominees, who are minorities themselves. In some other cases that have
the same goal of diluting the minority vote, the districts are
reconstructed in a way that packs minority voters into a smaller or
limited number of districts.
In the 20th century and afterwards, federal courts have deemed
extreme cases of gerrymandering to be unconstitutional but have
struggled with how to define the types of gerrymandering and the
standards that should be used to determine which redistricting maps are
unconstitutional. The US Supreme Court has affirmed in Miller v. Johnson
(1995) that racial gerrymandering is a violation of constitutional
rights and upheld decisions against redistricting that is purposely
devised based on race. However, the Supreme Court has struggled as to
when partisan gerrymandering occurs (Vieth v. Jubelirer (2004) and Gill v. Whitford (2018)) and a landmark decision, Rucho v. Common Cause (2019), ultimately decided that questions of partisan gerrymandering represent a nonjusticiable political question,
which cannot be dealt with by the federal court system. That decision
leaves it to states and to Congress to develop remedies to challenge and
to prevent partisan gerrymandering. Some states have created
independent redistricting commissions to reduce political drivers for redistricting.
Partisan gerrymandering
Origins (1789–2000)
Printed
in March 1812, this political cartoon was drawn in reaction to the
newly drawn Congressional electoral district of South Essex County drawn
by the Massachusetts legislature to favor the Democratic-Republican
Party candidates of Governor Elbridge Gerry over the Federalists. The
caricature satirizes the bizarre shape of a district in
Essex County, Massachusetts
as a dragon-like "monster." Federalist newspapers editors and others at
the time likened the district shape to a salamander, and the word
gerrymander was a blend of that word and Governor Gerry's last name.
Partisan gerrymandering, which refers to redistricting that favors
one political party, has a long tradition in the United States.
Starting from the William Cabell Rives in mid-19th century it is often stated that it precedes the 1789 election of the First U.S. Congress: namely, that while Patrick Henry and his Anti-Federalist allies were in control of the Virginia House of Delegates in 1788, they drew the boundaries of Virginia's 5th congressional district in an unsuccessful attempt to keep James Madison out of the U.S. House of Representatives.
However, in early 20th century it was revealed that this theory was
based on incorrect claims by Madison and his allies, and recent
historical research disproved it altogether.
The word gerrymander (originally written "Gerry-mander") was used
for the first time in the Boston Gazette (not to be confused with the Boston Gazette) on March 26, 1812 in reaction to a redrawing of Massachusetts state senate election districts under the then-governor Elbridge Gerry (1744–1814), who signed a bill that redistricted Massachusetts to benefit his Democratic-Republican Party. When mapped, one of the contorted districts to the north of Boston was said to resemble the shape of a salamander.
The coiner of the term "gerrymander" may never be firmly established. Historians widely believe that the Federalist newspaper editors Nathan Hale, and Benjamin and John Russell
were the instigators, but the historical record does not have
definitive evidence as to who created or uttered the word for the first
time. Appearing with the term, and helping to spread and sustain its popularity, was a political cartoon
depicting a strange animal with claws, wings and a dragon-like head
satirizing the map of the odd-shaped district. This cartoon was most
likely drawn by Elkanah Tisdale, an early 19th-century painter, designer, and engraver who was living in Boston at the time. The word gerrymander
was reprinted numerous times in Federalist newspapers in Massachusetts,
New England, and nationwide during the remainder of 1812.
Gerrymandering soon began to be used to describe not only the
original Massachusetts example, but also other cases of district-shape
manipulation for partisan gain in other states. The first known use
outside the immediate Boston area came in the Newburyport Herald of Massachusetts on March 31, and the first known use outside Massachusetts came in the Concord Gazette of New Hampshire on April 14, 1812. The first known use outside New England came in the New York Gazette & General Advertiser on May 19. What may be the first use of the term to describe the redistricting in another state (Maryland) occurred in the Federal Republican
(Georgetown, Washington, DC) on October 12, 1812. There are at least 80
known citations of the word from March through December 1812 in
American newspapers.
The practice of gerrymandering the borders of new states
continued past the Civil War and into the late 19th century. The
Republican Party used its control of Congress to secure the admission of
more states in territories friendly to their party. A notable example
is the admission of Dakota Territory as two states instead of one. By the rules for representation in the Electoral College, each new state carried at least three electoral votes, regardless of its population.
From time to time, other names are given the "-mander" suffix to
tie a particular effort to a particular politician or group. These
include "Jerrymander" (a reference to California Governor Jerry Brown), and "Perrymander" (a reference to Texas Governor Rick Perry).
In the 1960s, a series of "one person, one vote" cases were decided by the Supreme Court, which resulted in a mandate of redistricting
in response to the results of each census. Prior to these decisions,
many states had stopped redrawing their districts. As a result of the
periodic need to redistrict, political conflicts over redistricting have
sharply increased.
2000-2010
The potential to gerrymander a district map has been aided by advances in computing power and capabilities. Using geographic information system
and census data as input, mapmakers can use computers to process
through numerous potential map configurations to achieve desired
results, including partisan gerrymandering.
Computers can assess voter preferences and use that to "pack" or
"crack" votes into districts. Packing votes refers to concentrating
voters in one voting district by redrawing congressional boundaries so
that those in opposition of the party in charge of redistricting are
placed into one larger district, therefore reducing the party's
congressional representation. Cracking refers to diluting the voting
power of opposition voters across many districts by redrawing
congressional boundaries so that voting minority populations in each
district are reduced, therefore lowering the chance of a
district-oriented congressional takeover. Both techniques lead to what
the Times describes as "wasted votes," which are votes that do not
supply a party with any victory. These can either be a surplus of votes
in one district for one party that are above the threshold needed to
win, or any vote that has resulted in a loss.
A study done by the University of Delaware mentions situations in which
an incumbent that is required to live in the district they represent
can be "hijacked" or "kidnapped" into a neighboring district due to the
redrawing of congressional boundaries, subsequently placing them in
districts that are more difficult for them to win in. Partisan gerrymandering oftentimes leads to benefits for a particular political party, or, in some cases, a race.
In Pennsylvania, the Republican-dominated state legislature used gerrymandering to help defeat Democratic representative Frank Mascara.
Mascara was elected to Congress in 1994. In 2002, the Republican Party
altered the boundaries of his original district so much that he was
pitted against fellow Democratic candidate John Murtha
in the election. The shape of Mascara's newly drawn district formed a
finger that stopped at his street, encompassing his house, but not the
spot where he parked his car. Murtha won the election in the newly
formed district.
State legislatures have used gerrymandering along racial or
ethnic lines both to decrease and increase minority representation in
state governments and congressional delegations. In the state of Ohio, a
conversation between Republican officials was recorded that
demonstrated that redistricting was being done to aid their political
candidates. Furthermore, the discussions assessed race of voters as a
factor in redistricting, because African-Americans had backed Democratic
candidates. Republicans apparently removed approximately 13,000
African-American voters from the district of Jim Raussen,
a Republican candidate for the House of Representatives, in an attempt
to tip the scales in what was once a competitive district for Democratic
candidates.
International election observers from the Organization for Security and Co-operation in Europe Office for Democratic Institutions and Human Rights, who were invited to observe and report on the 2004 national elections,
expressed criticism of the U.S. congressional redistricting process and
made a recommendation that the procedures be reviewed to ensure genuine
competitiveness of congressional election contests.
2010-2020
In the lead-up to the 2010 United States elections, the Republican party initiated a program called REDMAP,
the Redistricting Majority Project, which recognized that the party in
control of state legislatures would have the ability to set their
congressional and legislative district maps based on the pending 2010 United States Census
in manner to assure that party's control over the next ten years. The
Republicans took significant gains from the 2010 elections across
several states, and by 2011 and 2012, some of the new district maps
showed Republican advantage through perceived partisan gerrymandering.
This set the stage for several legal challenges from voters and groups
in the court system, including several heard at the Supreme Court level.
In 2015, Thomas Hofeller was hired by the Washington Free Beacon
to analyze what would happen if political maps were drawn based on the
population of U.S. citizens of voting age rather than on the total
population. He concluded that doing so “would be advantageous to
Republicans and non-Hispanic whites." Although the study was not
published, it was discovered after his death in 2018. Attorney General William P. Barr and Commerce Secretary Wilbur L. Ross Jr. have refused to cooperate with an investigation into why the Trump administration added a U.S. citizenship question to the 2020 census and specifically whether it seeks to benefit Republicans as suggested by Hofeller's study.
Several state court rulings found partisan gerrymandering to be
impermissible under state constitutions, and several state ballot
measures passed in 2018 that require non-partisan commissions for the
2020 redistricting cycle.
Legality
U.S. congressional districts covering
Travis County, Texas (outlined in red) in 2002, left, and 2004, right. In 2003, the majority of Republicans in the Texas legislature
redistricted the state,
diluting the voting power of the heavily Democratic county by parceling
its residents out to more Republican districts. In 2004 the orange
district 25 was intended to elect a Democrat while the yellow and pink
district 21 and
district 10 were intended to elect Republicans. District 25 was redrawn as the result of a 2006 Supreme Court decision. In the
2011 redistricting, Republicans divided Travis County between five districts, only one of which, extending to San Antonio, elects a Democrat.
2018
election results for the US House of Representatives, showing
Democratic Party vote share and seat share. While the overall vote share
and seat share were the same at 54%, there were several states with
significant differences in share. Note that several states with few or
one representative appear at the 0 or 100% seat share. States with more
representatives and sizable share differences are more analytically
relevant for evaluating the risk of gerrymandering.
Federal courts
Whether
a redistricting results in a partisan gerrymandering has been a
frequent question put to the United States court system, but which the
courts have generally avoided a strong ruling for fear of showing
political bias towards either of the major parties. The Supreme Court had ruled in Davis v. Bandemer (1986) that partisan gerrymandering violates the Equal Protection Clause and is a justiciable
matter. However, in its decision, the Court could not agree on the
appropriate constitutional standard against which legal claims of
partisan gerrymandering should be evaluated. Writing for a plurality of
the Court, Justice White said that partisan gerrymandering occurred when
a redistricting plan was enacted with both the intent and the effect of
discriminating against an identifiable political group. Justices Powell
and Stevens said that partisan gerrymandering should be identified
based on multiple factors, such as electoral district shape and
adherence to local government boundaries. Justices O'Connor, Burger, and
Rehnquist disagreed with the view that partisan gerrymandering claims
were justiciable and would have held that such claims should not be recognized by courts. Lower courts found it difficult to apply Bandemer, and only in one subsequent case, Party of North Carolina v. Martin (1992), did a lower court strike down a redistricting plan on partisan gerrymandering grounds.
The Supreme Court revisited the concept of partisan gerrymandering claims in Vieth v. Jubelirer (2004).
While the Court upheld that partisan gerrymandering could be
justiciable, the justices were divided in this specific case as no clear
standard against which to evaluate partisan gerrymandering claims
emerged. Writing for a plurality, Justice Scalia said that partisan
gerrymandering claims were nonjusticiable. A majority of the court would
continue to allow partisan gerrymandering claims to be considered
justiciable, but those justices had divergent views on how such claims
should be evaluated. Justice Anthony Kennedy,
in a concurrence with the plurality, offered that a manageable means to
determine when partisan gerrymandering occurred could be developed, and
challenged lower courts to find such means. The Court again upheld that partisan gerrymandering could be justiciable in League of United Latin American Citizens v. Perry (2006). While the specific case reached no conclusion of whether there was partisan gerrymandering, Justice John Paul Stevens's
concurrence with the plurality added the notion of partisan symmetry,
in that the electoral system should translate votes to representative
seats with the same efficiency regardless of party.
Opinions from Vieth and League, as well as the
strong Republican advantage created by its REDMAP program, had led to a
number of political scholars working alongside courts to develop such a
method to determine if a district map was a justiciable partisan
gerrymandering, as to prepare for the 2020 elections.
Many early attempts failed to gain traction the court system, focusing
more on trying to show how restricting maps were intended to favor one
party or disfavor the other, or that the redistricting eschewed
traditional redistricting approaches. Around 2014, Nicholas Stephanopoulos and Eric McGhee developed the "efficiency gap", a means to measure the number of wasted votes
(votes either far in excess of what we necessary to secure a win for a
party, or votes for a party that had little chase to win) within each
district. The larger the gap of wasted votes between the two parties
implied the more likely that the district maps supported a partisan
gerrymandering, and with a sufficiently large gap it would be possible
to sustain that gap indefinitely. While not perfect, having several
potential flaws when geography of urban centers were considered, the
efficiency gap was considered to be the first tool that met both
Kennedy's and Stevens' suggestions.
The first major legal test of the efficiency gap came into play for Gill v. Whitford (2016).
The District Court in the case used the efficiency gap statistic to
evaluate the claim of partisan gerrymander in Wisconsin's legislative
districts. In the 2012 election for the state legislature, the
efficiency gap was 11.69% to 13% in favor of the Republicans.
"Republicans in Wisconsin won 60 of the 99 Assembly seats, despite
Democrats having a majority of the statewide vote."
Moving the Harris's from a
Democratic, Milwaukee district into a larger Republican area was part of
a strategy known as 'packing and cracking.' Heavily Democratic
Milwaukee voters were 'packed' together in fewer districts, while other
sections of Milwaukee were 'cracked' and added to several Republican
districts ... diluting that Democratic vote. The result? Three fewer
Democrats in the state assembly representing the Milwaukee area.
— PBS NewsHour October 1, 2017
The disparity led to the federal lawsuit Gill v. Whitford,
in which plaintiffs alleged that voting districts were gerrymandered
unconstitutionally. The court found that the disparate treatment of
Democratic and Republican voters violated the 1st and 14th amendments to
the US Constitution. The District Court's ruling was challenged and appealed to the Supreme Court of the United States,
which in June 2017 agreed to hear oral arguments in the case in the
2017–2018 term of court.The case was then dismissed due to lack of
standing for the plaintiffs with no decision on the merits being made.
The case was then remanded for further proceedings to demonstrate
standing.
While previous redistricting cases before the Supreme Court have
involved the Equal Protection test, this case also centers on the
applicability of the First Amendment freedom of association clause.
Benisek v. Lamone
was a separate partisan gerrymandering case heard by the Supreme Court
in the 2017 term, this over perceived Democratic-favored redistricting
of Maryland's 6th congressional district,
with plaintiffs trying to get a stay on the use of the new district
maps prior to the October 2018 general election. The Court did not give
opinions on whether the redistricting was unconstitutional, but did
establish that on the basis of Gill that the case should be reconsidered at the District Court.
The District Court did subsequently rule the redistricting was
unconstitutional, and that decision was appealed again to the Supreme
Court, who have agreed to hear the case in the 2018 term as Lamone v. Benisek.
Yet another partisan redistricting case was heard by the Supreme Court during the 2018 term. Rucho v. Common Cause
deals with Republican-favored gerrymandering in North Carolina. The
District Court had ruled the redistricting was unconstitutional prior to
Gill; an initial challenge brought to the Supreme Court resulted
in an order for the District Court to re-evaluate their decision in
light of Gill. The District Court, on rehearing, affirmed their
previous decision. The state Republicans again sought for review by the
Supreme Court, which is scheduled to issue its opinion by June 2018.
Similarly, Michigan's post-2010 redistricting has been
challenged, and in April 2019, a federal court determined the
Republican-led redistricting to be an unconstitutional partisan
gerrymander, and orders the state to redraw districts in time for the
2020 election.
Within a week, a similar decision was arrived by a federal district
court reviewing Ohio's district maps since 2012 and were declared
unconstitutional as they were drawn by the Republican-majority lawmakers
with "invidious partisan intent", and ordered the maps redrawn. The
Republican-favored maps led Ohio's residents to vote for a statewide
initiative that requires the new redistricting maps after the 2020
Census to have at least 50% approval from the minority party.
The Republican party sought an immediate challenge to the redistricting
order, and by late May 2019, the Supreme Court ordered both the
court-ordered redrawing to be put on hold until Republicans can prepare a
complete petition, without commenting on the merits of the case
otherwise. Additionally, observers to the Supreme Court recognized that
the Court would be issuing its orders to the North Carolina and Maryland
cases, which would likely affect how the Michigan and Ohio court orders
would be interpreted.
Rucho v. Common Cause and Lamone v. Benisek were
decided on June 27, 2019, which, in the 5–4 decision, determined that
judging partisan gerrymandering cases is outside of the remit of the
federal court system due to the political questions involved. The
majority opinion stated that extreme partisan gerrymandering is still
unconstitutional, but it is up to Congress and state legislative bodies
to find ways to restrict that, such as through the use of independent
redistricting commissions.
State courts
The Pennsylvania Supreme Court ruled in League of Women Voters of Pennsylvania v. Commonwealth of Pennsylvania
that gerrymandering was unconstitutional, ruling that the districts
drawn to favor Republicans violated "free and equal" Elections Clause of
the Pennsylvanian constitution and redrew the districts after the state
government failed to comply with the deadline in its order to redraw. The U.S. Supreme Court denied to hear the challenge and allowed the Pennsylvania Supreme Court maps to remain in place.
In October 2019, a three-judge panel in North Carolina threw out a gerrymandered electoral map, citing violation of the constitution to disadvantage the Democratic Party.
Bipartisan gerrymandering (favoring incumbents)
Bipartisan
gerrymandering, where redistricting favors the incumbents in both the
Democratic and Republican parties, became especially relevant in the
2000 redistricting process, which created some of the most
non-competitive redistricting plans in American history. The Supreme Court held in Gaffney v. Cummings (1973) that bipartisan gerrymanders are constitutionally permissible under the Equal Protection Clause.
Racial gerrymandering
Racial
makeup can be used as a means to create gerrymanders. There is overlap
between racial and partisan gerrymandering, as minorities tend to favor
Democratic candidates; the North Carolina redistricting in Rucho v. Common Cause
was such a case dealing with both partisan and racial gerrymanders.
However, racial gerrymanders can also be created without considerations
of party lines.
Negative
"Negative
racial gerrymandering" refers to a process in which district lines are
drawn to prevent racial minorities from electing their preferred
candidates.
Between the Reconstruction Era and mid-20th century, white Southern Democrats effectively controlled redistricting throughout the Southern United States.
In areas where some African-American and other minorities succeeded in
registering, some states created districts that were gerrymandered to
reduce the voting impact of minorities. Minorities were effectively
deprived of their franchise into the 1960s. With the passage of the Voting Rights Act of 1965
and its subsequent amendments, redistricting to carve maps to
intentionally diminish the power of voters who were in a racial or
linguistic minority, was prohibited. The Voting Rights Act was amended
by Congress in the 1980s, Congress to "make states redraw maps if they
have a discriminatory effect." In July, 2017, San Juan County, Utah
was ordered to redraw its county commission and school board election
districts again after "U.S. District Judge Robert Shelby ruled that they
were unconstitutional." It was argued that the voice of Native
Americans, who were in the majority, had been suppressed "when they are
packed into gerrymandered districts."
Affirmative
While the Equal Protection Clause, along with Section 2 and Section 5
of the Voting Rights Act, prohibit jurisdictions from gerrymandering
electoral districts to dilute the votes of racial groups, the Supreme
Court has held that in some instances, the Equal Protection Clause
prevents jurisdictions from drawing district lines to favor racial
groups. The Supreme Court first recognized these "affirmative racial
gerrymandering" claims in Shaw v. Reno (Shaw I) (1993),
holding that plaintiffs "may state a claim by alleging that
[redistricting] legislation, though race neutral on its face, rationally
cannot be understood as anything other than an effort to separate
voters into different districts on the basis of race, and that the
separation lacks sufficient justification". The Supreme Court reasoned
that these claims were cognizable because relying on race in
redistricting "reinforces racial stereotypes and threatens to undermine
our system of representative democracy by signaling to elected officials
that they represent a particular racial group rather than their
constituency as a whole". Later opinions characterized the type of unconstitutional harm created by racial gerrymandering as an "expressive harm",
which law professors Richard Pildes and Richard Neimi have described as
a harm "that results from the idea or attitudes expressed through a
governmental action."
Subsequent cases further defined the counters of racial
gerrymandering claims and how those claims relate to the Voting Rights
Act. In United States v. Hays (1995), the Supreme Court held that only those persons who reside in a challenged district may bring a racial gerrymandering claim. In Miller v. Johnson (1995), the Supreme Court held that a redistricting plan must be subjected to strict scrutiny
if the jurisdiction used race as the "predominant factor" in
determining how to draw district lines. The court defined "predominance"
as meaning that the jurisdiction gave more priority to racial
considerations than to traditional redistricting principles such as
"compactness, contiguity, [and] respect for political subdivisions or
communities defined by actual shared interests."
In determining whether racial considerations predominated over
traditional redistricting principles, courts may consider both direct
and circumstantial evidence of the jurisdiction's intent in drawing the
district lines, and irregularly-shaped districts constitute strong
circumstantial evidence that the jurisdiction relied predominately on
race. If a court concludes that racial considerations predominated, then a
redistricting plan is considered a "racially gerrymandered" plan and
must be subjected to strict scrutiny, meaning that the redistricting
plan will be upheld as constitutional only if it is narrowly tailored to
advance a compelling state interest. In Bush v. Vera (1996), the Supreme Court in a plurality opinion assumed that compliance with
Section 2 or Section 5 of the Act constituted compelling interests, and
lower courts have treated these two interests as the only compelling
interests that may justify the creation of racially gerrymandered
districts.
In Hunt v. Cromartie (1999) and its follow-up case Easley v. Cromartie
(2001), the Supreme Court approved a racially focused gerrymandering of
a congressional district on the grounds that the definition was not
pure racial gerrymandering but instead partisan gerrymandering, which is
constitutionally permissible. With the increasing racial polarization
of parties in the South in the U.S. as conservative whites move from the
Democratic to the Republican Party, gerrymandering may become partisan
and also achieve goals for ethnic representation.
Various examples of affirmative racial gerrymandering have emerged. When the state legislature considered representation for Arizona's Native American reservations, they thought each needed their own House member, because of historic conflicts between the Hopi and Navajo
nations. Since the Hopi reservation is completely surrounded by the
Navajo reservation, the legislature created an unusual district
configuration for the 2nd congressional district
that featured a fine filament along a river course several hundred
miles in length to attach the Hopi reservation to the rest of the
district; the arrangement lasted until 2013. The California state legislature created a congressional district
(2003–2013) that extended over a narrow coastal strip for several
miles. It ensured that a common community of interest will be
represented, rather than having portions of the coastal areas be split
up into districts extending into the interior, with domination by inland
concerns.
In the case of League of United Latin American Citizens v. Perry, the United States Supreme Court upheld on June 28, 2006, most of a Texas congressional map suggested in 2003 by former United States House Majority Leader Tom DeLay, and enacted by the state of Texas.
The 7–2 decision allows state legislatures to redraw and gerrymander
districts as often as they like (not just after the decennial census).
In his dissenting opinion in LULAC v. Perry, Justice John Paul
Stevens, joined by Justice Stephen Breyer, quoted Bill Ratliffe, former
Texas lieutenant governor and member of the Texas state senate saying,
"political gain for the Republicans was 110% the motivation for the
plan," and argued that a plan whose "sole intent" was partisan could
violate the Equal Protection Clause. This was notable as previously Justice Stevens had joined Justice Breyer's opinion in Easley v. Cromartie,
which held that explicitly partisan motivation for gerrymanders was
permissible and a defense against claims of racial gerrymandering. Thus
they may work to protect their political parties' standing and number of
seats, so long as they do not harm racial and ethnic minority groups. A
5–4 majority declared one congressional district unconstitutional in the case because of harm to an ethnic minority.
Inclusion of prisons
Since the 1790 United States Census, the United States Census Bureau
has counted prisoner populations as residents of the districts in which
they are incarcerated, rather than in the same district as their
previous pre-incarceration residence. In jurisdictions where
incarcerated people cannot vote, moving boundaries around a prison can
create a district out of what would otherwise be a population of voters
which is too small. One extreme example is Waupun, Wisconsin,
where two city council districts are made up of 61% and 76%
incarcerated people, but as of 2019, neither elected representative has
visited the local prisons.
In 2018, the Census Bureau announced that it would retain the
policy, asserting that the policy "is consistent with the concept of
usual residence, as established by the Census Act of 1790," but also
conceding assistance to states who wish "'to 'move' their prisoner
population back to the prisoners' pre-incarceration addresses for
redistricting and other purposes".
A number of states have since ordered their state governments to
recognize incarcerated persons as residents of their pre-incarceration
homes for the sake of legislative and congressional redistricting at all
levels, including Maryland (2010), New York (2010) in time for the 2010 Census, and California (2011), Delaware (2010), Nevada (2019) and Washington State (2019), New Jersey (2020), Colorado (2020), Virginia (2020) and Connecticut (2021) in time for the 2020 Census.
Colorado (2002), Michigan (1966), Tennessee (2016) and Virginia (2013)
have passed laws restricting counties and municipalities from (or
allowing counties and municipalities to avoid) prison-based
redistricting, and Massachusetts passed a 2014 resolution requesting the
Census Bureau to end the practice of counting prisoners in their
incarceration districts.
Remedies
Various political and legal remedies have been used or proposed to diminish or prevent gerrymandering in the country.
Neutral redistricting criteria
Various
constitutional and statutory provisions may compel a court to strike
down a gerrymandered redistricting plan. At the federal level, the
Supreme Court has held that if a jurisdiction's redistricting plan
violates the Equal Protection Clause or Voting Rights Act of 1965,
a federal court must order the jurisdiction to propose a new
redistricting plan that remedies the gerrymandering. If the jurisdiction
fails to propose a new redistricting plan, or its proposed
redistricting plan continues to violate the law, then the court itself
must draw a redistricting plan that cures the violation and use its
equitable powers to impose the plan on the jurisdiction.
In the Supreme Court case of Karcher v. Daggett (1983), a New Jersey redistricting plan was overturned when it was found to be unconstitutional by violating the constitutional principle of one person, one vote.
Despite the state claiming its unequal redistricting was done to
preserve minority voting power, the court found no evidence to support
this and deemed the redistricting unconstitutional.
At the state level, state courts may order or impose
redistricting plans on jurisdictions where redistricting legislation
prohibits gerrymandering. For example, in 2010 Florida adopted two state
constitutional amendments that prohibit the Florida Legislature from
drawing redistricting plans that favor or disfavor any political party
or incumbent.
Ohio residents passed an initiative in 2018 that requires the
redistricting maps to have at least 50% approval by the minority party
in the legislature.
Moon Duchin, a Tufts University professor, has proposed the use of metric geometry to measure gerrymandering for forensic purposes.
Redistricting commissions
Congressional
redistricting methods by state after the
2010 census:
State legislatures control redistricting
Commissions control redistricting
Nonpartisan staff develop the maps, which are then voted on by the state legislature
No redistricting due to having only one congressional district
Some states have established non-partisan redistricting commissions with redistricting authority. Washington, Arizona, and California have created standing committees for redistricting following the 2010 census. However, it has been argued that the Californian standing committee has failed to end gerrymandering. Rhode Island and the New Jersey Redistricting Commission have developed ad hoc committees, but developed the past two decennial reapportionments tied to new census data.
The Arizona State Legislature challenged the constitutionality of a non-partisan commission, rather than the legislature, for redistricting. In Arizona State Legislature v. Arizona Independent Redistricting Commission (2015), the US Supreme Court upheld the constitutionality of non-partisan commissions.
Alternative voting systems
The predominant voting system in the United States is a first-past-the-post system that uses single-member districts. Various alternative district-based
voting systems that do not rely on redistricting, or rely on
redistricting minimally, have been proposed that may mitigate against
the ability to gerrymander. These systems typically involve a form of
at-large elections or multimember districts. Examples of such systems
include the single-transferable vote, cumulative voting, and limited voting.
Proportional voting systems, such as those used in all but three European states,
would bypass the problem altogether. In these systems, the party that
gets, for example, 30 percent of the votes gets roughly 30 percent of
the seats in the legislature. Although it is common for European states
to have more than two parties, a sufficiently high election threshold can limit the number of parties elected. Some proportional voting systems
have no districts or larger multimember districts and may break the
strong constituency link, a cornerstone of current American politics, by
eliminating the dependency of individual representatives on a concrete
electorate. However, systems like mixed-member proportional representation
keep local single-member constituencies but balance their results with
nationally elected or regionally-elected representatives to reach party
proportionality.
Effects
Democracy
A
2020 study found that gerrymandering "impedes numerous party functions
at both the congressional and state house levels. Candidates are less
likely to contest districts when their party is disadvantaged by a
districting plan. Candidates that do choose to run are more likely to
have weak resumes. Donors are less willing to contribute money. And
ordinary voters are less apt to support the targeted party. These
results suggest that gerrymandering has long‐term effects on the health
of the democratic process beyond simply costing or gaining parties seats
in the legislature."
Gerrymandering and the environment
Gerrymandering
has the ability to create numerous problems for the constituents
impacted by the redistricting. A study done by the peer-reviewed
Environmental Justice Journal analyzed how gerrymandering contributes to
environmental racism.
It suggested that partisan gerrymandering can often lead to adverse
health complications for minority populations that live closer to United
States superfund
sites and additionally found that during redistricting periods,
minority populations are "effectively gerrymandered out" of districts
that tend to have fewer people of color in them and are farther away
from toxic waste sites. This redistricting can be seen as a deliberate
move to further marginalize minority populations and restrict them from
gaining access to congressional representation and potentially fixing
environmental hazards in their communities.
Gerrymandering and the 2018 midterm elections
Gerrymandering was considered by many Democrats to be one of the biggest obstacles they came across during the 2018 U.S. midterm election.
In early 2018, both the United States Supreme Court and the
Pennsylvania Supreme Court determined that the Republican parties in
North Carolina and Pennsylvania had committed unconstitutional partisan
gerrymandering in the respective cases Cooper v. Harris and League of Women Voters of Pennsylvania v. Commonwealth of Pennsylvania.
In the case of Pennsylvania, the map was reconfigured into an evenly
split congressional delegation, which gave Democrats in Pennsylvania
more congressional representation and subsequently aided the Democrats
in flipping the U.S. House of Representatives. In contrast, North
Carolina did not reconfigure the districts prior to the midterm
elections, which ultimately gave Republicans there an edge during the
election. Republicans in North Carolina acquired 50% of the vote, which
subsequently garnered them about 77% of the available seats in congress.
Other factors affecting redistricting
At
a federal level, gerrymandering has been blamed for a decrease in
competitive elections, movement toward extreme party positions, and gridlock in Congress. Harry Enten of FiveThirtyEight
argues that decreasing competition is partly due to gerrymandering, but
even more so due to the population of the United States
self-segregating by political ideology, which is seen in by-county voter
registrations. Enten points to studies which find that factors other
than gerrymandering account for over 75% of the increase in polarization
in the past forty years, presumably due largely to changes among voters
themselves. Because the Senate (which cannot be gerrymandered due to
the fixed state borders) has been passing fewer bills but the House
(which is subject to gerrymandering) has been passing more (comparing
1993–2002 to 2013–2016), Enten concludes gridlock is due to factors
other than gerrymandering.