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


Legislative Redistricting Control


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