Political battles over congressional district boundaries have intensified across the country as November’s midterm elections approach, following a Supreme Court decision that reduced federal voting rights protections and allowed states more freedom to alter districts previously designed to protect racial minority representation.
While congressional districts are normally redrawn once per decade using new census information, an unprecedented wave of mid-decade map changes has emerged. This trend began when former President Donald Trump encouraged Texas GOP leaders last year to redraw House districts to benefit Republican candidates in the midterms. California Democrats responded with their own strategic redistricting efforts, prompting additional states to follow suit.
Already, eight states have enacted new House district maps, with several others weighing similar changes. Republican strategists estimate they could capture as many as 13 additional House seats through new boundaries in Texas, Florida, Missouri, North Carolina and Ohio. Democratic leaders believe they might secure up to 10 extra seats from redrawn districts in California, Utah and Virginia.
However, these projections rely on previous election results continuing into November. Traditionally, the sitting president’s political party loses congressional seats during midterm contests. Democrats require only a small number of seat gains in November to take House control away from Republicans, which would strengthen their ability to challenge Trump’s agenda.
At least three state legislatures are currently meeting to evaluate proposals for new House district boundaries.
Louisiana’s current delegation includes two Democrats and four Republicans. Republican Governor Jeff Landry delayed the May 16 congressional primary to give state lawmakers time to modify House districts following an April 29 Supreme Court decision that eliminated a majority-Black congressional district. Multiple legal challenges have been filed in both federal and state courts, arguing that Landry overstepped his authority by suspending the primary elections.
Alabama currently sends two Democrats and five Republicans to the House. Republican state leaders want to return to a House map approved in 2023 but never implemented, which could help the GOP capture another seat. The existing map was court-ordered and intended for use through the 2030 census. State officials have petitioned the Supreme Court to overturn that directive based on the Louisiana redistricting ruling.
Tennessee’s delegation consists of one Democrat and eight Republicans. Republican Governor Bill Lee has convened lawmakers for a special session to examine a new House map that would divide a Black-majority district in Memphis and boost Republican odds of gaining another seat. The candidate filing deadline has already passed for primaries scheduled for August 6.
Eight states have adopted new House districts since last summer. Six chose to redistrict voluntarily, one was mandated by state constitutional requirements, and another acted under court directive.
Texas currently has 13 Democrats and 25 Republicans in its House delegation. Republican Governor Greg Abbott signed revised House boundaries into law last August that could help Republicans secure five more seats. The Supreme Court cleared the new districts for use in this year’s elections in December and has since reversed a lower court ruling that blocked the map for being “racially gerrymandered.”
California’s delegation includes 43 Democrats and nine Republicans. Voters approved revised House districts in November that were drawn by the Democratic-controlled Legislature and could help Democrats win five additional seats. The Supreme Court permitted the new districts for this year’s elections in February, rejecting appeals from Republicans and the Justice Department who claimed the districts improperly favored Hispanic voters.
Missouri sends two Democrats and six Republicans to the House. Republican Governor Mike Kehoe signed revised House boundaries into law last September that could help Republicans gain one more seat. A Cole County judge ruled the new map is valid while election officials determine whether a referendum petition meets constitutional standards and contains sufficient valid signatures. The Missouri Supreme Court rejected claims that mid-decade redistricting violates state law and will hear arguments in May regarding allegations that new districts violate compactness rules and should be suspended pending the potential referendum.
North Carolina’s delegation has four Democrats and 10 Republicans. The Republican-controlled General Assembly gave final approval in October to revised districts that could help Republicans win an additional seat. A federal court panel denied a request in November to prevent the revised districts from being used in the midterm elections.
Ohio currently has five Democrats and 10 Republicans in its House delegation. A bipartisan panel with a Republican majority voted in October to approve revised House districts that improve Republican chances of winning two more seats. The state constitution mandated new districts before the 2026 election because Republicans had previously approved the prior map without adequate Democratic support following the last census.
Utah’s delegation includes no Democrats and four Republicans. A judge imposed revised House districts in November that could help Democrats win a seat after ruling that lawmakers had bypassed anti-gerrymandering standards approved by voters when creating the previous map. Both a federal court panel and the state Supreme Court rejected Republican challenges to the judicial map selection in February.
Virginia sends six Democrats and five Republicans to the House. Voters approved a constitutional amendment on April 21 authorizing new House districts supported by Democrats that could help the party win up to four additional seats. The state Supreme Court allowed the referendum to proceed but has not yet determined whether the effort is legal, considering an appeal of a Tazewell County judge’s ruling that the amendment is invalid due to procedural violations by lawmakers.
Florida’s delegation consists of eight Democrats and 20 Republicans. Republican Governor Ron DeSantis announced on May 4 that he had signed revised House districts that improve GOP chances of winning four more seats. A court challenge argues the new map violates a state constitutional provision that prohibits districts from being drawn to favor or disadvantage a political party.
