When the 2026 midterm election gets closer, states are racing to redraw U.S. House districts—and legal fights over those boundaries are moving just as quickly. The redistricting contest has been framed by both major parties as a way to gain seats, with supporters arguing the new lines will improve their chances and opponents challenging whether maps comply with constitutional limits. The effort began after President Donald Trump urged Republicans in Texas to redraw the state’s congressional districts for political gain, and it expanded as Democrats in some states followed with their own redistricting moves.
The push has now shifted toward Democratic-led states including Maryland and Virginia, with Republican-led Florida set to take up congressional redistricting this spring. Even where maps are adopted through state law or voter approval, deadlines for candidates to file for office can become entangled with court decisions that determine whether particular district boundaries will be used.
The situation is particularly pronounced in states that have already changed maps or are operating under directions from courts. In Texas, Gov. Greg Abbott signed a revised House map into law on Aug. 29, a step that supporters said could help Republicans win five additional seats. The U.S. Supreme Court on Dec. 4 cleared the way for the new districts to be used in this year’s elections after putting on hold a lower-court ruling that blocked the map on grounds it was “racially gerrymandered.” The candidate deadline listed for Texas was Dec. 8, and the change is part of a broader pattern in which constitutional litigation plays a direct role in what voters will ultimately see.
California’s approach also depended on voter approval and high-court timing. The map that voters approved on Nov. 4 was drawn by the Democratic-led Legislature and was expected to help Democrats win five additional seats. A challenge that the districts impermissibly favor Hispanic voters reached the U.S. Supreme Court, which on Feb. 4 allowed the new districts to be used in this year’s elections while denying appeals from Republicans and the Department of Justice. California’s candidate deadline was March 6.
Missouri and North Carolina show how the redistricting timeline can be tied to both state action and voter-driven or litigation-driven follow-on steps. Missouri Gov. Mike Kehoe signed a revised House map into law on Sept. 28, which opponents and challengers have sought to scrutinize through multiple avenues, including petition signatures submitted Dec. 9 to try to force a statewide referendum on the map, expected to occur in a November election. Several lawsuits also challenge the legality of the districts. In North Carolina, the Republican-led General Assembly gave final approval Oct. 22 to revised districts that supporters said could help Republicans win an additional seat; a federal court panel on Nov. 26 denied a request to block the revised districts from being used in the midterm elections, and candidates there faced a Dec. 19 deadline.
Other states reflect different pathways into new district boundaries: some rely on bipartisan panels or court-ordered redesigns, while others are constrained by state constitutional requirements. In Ohio, a bipartisan panel composed primarily of Republicans voted Oct. 31 to approve revised House districts said to improve Republicans’ chances of winning two additional seats, and the state’s constitution required new districts after Republicans approved the prior map without Democratic support. In Utah, a judge imposed revised House districts on Nov. 11 that were intended to help Democrats win a seat, and Republicans are challenging the judicial map selection after a court ruling that lawmakers had circumvented anti-gerrymandering standards passed by voters; Utah’s filing deadline was pushed to March 13 after a bill changed the deadline from Jan. 8.
The late-stage political maneuvering continues in Virginia and Maryland, where the legislative process has collided with court review. In Virginia, Democrats have proposed a new U.S. House map and sought to enable mid-decade redistricting by pushing a constitutional amendment through the General Assembly on Jan. 16. A state judge ruled Jan. 27 that the constitutional amendment was invalid after finding that lawmakers violated their own rules while passing it, and Democrats are appealing. The candidate deadline in Virginia was set for April 2. Maryland’s Democratic House passed a redistricting plan on Feb. 2 backed by Democratic Gov. Wes Moore and aiming to add a seat for Democrats, but the state Senate president has said his chamber would not move forward with redistricting due to concerns it could backfire against Democrats. Maryland’s candidate deadline was Feb. 24.
As states prepare filings, some maps are also subject to federal court activity elsewhere. In New York, no revised districts had been proposed yet, but a judge on Jan. 21 ordered a state commission to draw new boundaries for the only congressional district in New York City represented by a Republican after ruling the map unconstitutionally dilutes votes of Black and Hispanic residents. Republicans have appealed, and the candidate deadline in New York was April 2. In Florida, Gov. Ron DeSantis said he will call a special legislative session in April on congressional redistricting, and the filing deadline listed there was April 24; the challenge includes a lawsuit asserting DeSantis cannot legally call that session.
The same election-year clock affects other states considering or preparing redistricting moves. Louisiana Gov. Jeff Landry signed legislation in October delaying the state’s primary election from April 18 to May 16, a change that could give lawmakers extra time to redraw House districts if the U.S. Supreme Court overturns the current districts; Louisiana’s candidate deadline was Feb. 13. In Indiana, a redistricting plan that supporters said would improve Republicans’ chances of winning two additional seats passed the House on Dec. 5 but was rejected by the state Senate in a bipartisan vote on Dec. 11, and candidates faced a Feb. 6 deadline. In Illinois, the Democratic Congressional Campaign Committee proposed a map in October, but the Democratic-led General Assembly had not taken up redistricting as of the reporting, citing concerns about the effect on representation for Black residents; the candidate deadline was closed Nov. 3.
Other states show how constitutional amendment pathways, legislative opposition, or unresolved lawsuits can delay redistricting decisions into late filing windows. In Kansas, some Republicans pushed for redistricting, but lawmakers dropped a petition drive for a special session in November, and a House leader said in January that the plan still lacked enough support; candidates had until June 1. In Colorado, several Democratic state officials expressed support for a constitutional amendment that would allow mid-decade redistricting, but an amendment would need to go on a statewide ballot before new districts could be implemented, with a candidate deadline of March 17. In Washington, Democrats proposed a constitutional amendment but lacked the two-thirds majority in both legislative chambers to refer it to the ballot, making it unlikely to be approved before the November election; candidates had until May 8. In Nebraska, Gov. Jim Pillen has expressed support for mid-decade redistricting but some Republican lawmakers remain reluctant, and the candidate deadline was March 1.
The court docket also remains a moving target, including in Wisconsin, where two lawsuits assert congressional districts must be redrawn because they unconstitutionally favor Republicans. One case is not scheduled for trial until 2027, and it was unclear whether the other case could be resolved before the midterm election. Wisconsin’s candidate deadline was June 1.