Redistricting Control

Post-2018 Midterm Redistricting Control

This post will be updated as results are finalized.

The 2018 midterms have changed the landscape for congressional and legislative redistricting control.

Congressional Redistricting Control

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Legislative Redistricting Control

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States with Republican Trifectas (19):

Alabama, Arkansas, Florida, Georgia, Indiana, Iowa, Kentucky, Mississippi, Missouri, Nebraska, North Dakota, Oklahoma, South Carolina, South Dakota, Texas, Tennessee, Utah, West Virginia, Wyoming

States with Democrat Trifectas (7):

Delaware, Illinois, Nevada, New Mexico, New York, Oregon, Rhode Island

States with Split Control (9):

Connecticut*, Louisiana, Maine*, Minnesota, New Hampshire, Ohio**, Pennsylvania, Vermont, Virginia, Wisconsin

* States require 2/3 majorities in both chambers to enact a map.

** Ohio requires votes from both parties to enact a map for 10 years.

States with Veto-Proof Majorities over Gubernatorial Vetoes (4):

Kansas, Maryland, Massachusetts, North Carolina*

* Governor has no veto over redistricting plans.

States with Commissions (11):

Alaska, Arizona, California, Colorado, Hawaii, Idaho, Michigan, Montana, New Jersey, Ohio*, Washington

* For the state legislature and as a backup plan for the Congressional districts.

2018 Redistricting-Related Ballot Measures

Ballot measures in Colorado and Michigan created commissions for Congressional and state legislative redistricting, a measure in Missouri tasked a state employee with the job of drafting maps for the state legislative commission’s consideration, and a Utah measure created an advisory commission that submits maps for the legislature’s consideration. Missouri remains a commission state for state legislative redistricting. Utah’s ballot measure still requires legislative approval to enact maps. Results are below.

Colorado Amendment Y (Congressional) - PASSED

For: 1,705,827 (71.4%)
Against: 684,025 (28.6%)

Results via the Colorado Secretary of State


Colorado Amendment Z (State Legislative) - PASSED

For: 1,682,472 (71.1%)
Against: 684,870 (28.9%)

Results via the Colorado Secretary of State


Michigan Proposal 2 (aka Voters Not Politicians) - PASSED

For: 2,507,294 (61.2%)
Against: 1,586,831 (38.8%)

Results via the New York Times


Missouri Amendment 1 (aka Clean Missouri) - PASSED

For: 1,459,576 (62.0%)
Against: 895,012 (38.0%)

Results via the Missouri Secretary of State


Utah Proposition 4 - PASSED

For: 512,218 (50.3%)
Against: 505,274 (49.7%)

Results via the Utah Lt. Governor