Across the United States, political leaders are engaged in crucial battles over congressional district maps—disputes that could determine which party holds power in the US House of Representatives after the 2024 elections.

In North Carolina, the Republican-led legislature has introduced a redistricting plan that may help the party gain at least three seats. Meanwhile, Democrats could secure additional seats through legal challenges unfolding in states like New York, Louisiana, and Georgia.

Altogether, control of 14 to 18 House seats across nearly a dozen states hinges on these redistricting conflicts. Currently, Republicans hold only a slim majority in the House, with one vacancy. This narrow margin was highlighted by the GOP’s recent struggles to elect a new Speaker.

"With such a tight majority, every redistricting outcome plays a crucial role in shaping House control in 2024," said David Wasserman, a senior editor and elections analyst at The Cook Political Report with Amy Walter.

Wasserman further emphasized that, given the declining number of competitive districts, "every line change is almost existential." Several key factors have contributed to the ongoing redistricting battles, just months before the first primaries of the 2024 election cycle.

Delays in the 2020 census, partly due to the COVID-19 pandemic, disrupted the once-a-decade redistricting process. Additionally, a 2019 Supreme Court ruling delegated partisan gerrymandering decisions to state courts.

Some redistricting lawsuits had been on hold until a landmark Supreme Court ruling in June 2023, which determined that Alabama's Republican-backed map unfairly disadvantaged Black voters, violating the 1965 Voting Rights Act. This ruling has reignited redistricting disputes in other states.

"This decision has essentially revived previously dormant cases," said Adam Kincaid, president and executive director of the National Republican Redistricting Trust, which supports GOP redistricting efforts.

Kincaid noted that it's still unclear whether redistricting will ultimately favor Republicans or Democrats in the 2024 elections. He estimated that either party could gain or lose about two seats due to redistricting shifts.

In many states where disputes are ongoing, only one seat is in question—except for North Carolina and New York, where multiple seats are at stake. Republicans control the map-drawing process in North Carolina, while a court ruling in New York has handed redistricting power to Democrats in the state legislature, potentially offsetting Republican gains.

"Democrats need to secure victories in several states to gain any advantage," said Nick Seabrook, a political scientist at the University of North Florida and author of One Person, One Vote: A Surprising History of Gerrymandering in America.

Key State Redistricting Developments

North Carolina

North Carolina's Republican-dominated legislature has drawn new congressional district lines that could significantly benefit the GOP, increasing their chances of holding the House majority.

Currently, the state’s congressional delegation is evenly split between Democrats and Republicans (7-7). However, the newly approved map places three Democratic incumbents—Jeff Jackson (Charlotte area), Wiley Nickel (Raleigh area), and Kathy Manning (Greensboro area)—in districts that experts say are nearly impossible for them to win. All three have announced they will not seek reelection.

Another Democratic representative, Don Davis, has been placed in a redrawn district that leans more Republican but remains competitive.

Republicans gained greater control over the redistricting process in North Carolina after flipping the state Supreme Court in 2022. The new GOP-majority court overturned a previous ruling against partisan gerrymandering, which had led to the current 7-7 House split. Democratic Governor Roy Cooper has no veto power over redistricting decisions.

A lawsuit filed by Black and Latino residents challenges the new GOP-approved map, arguing that it intentionally discriminates against minority voters in violation of the US Constitution.

Alabama

Alabama has been at the center of one of the most significant redistricting cases this cycle. A three-judge panel approved a new congressional map that adds a second district with a substantial Black population.

Despite Alabama’s 27% Black population, only one of its seven congressional districts previously had a Black majority. The court-ordered changes now create a second district where nearly half of the residents are Black, incorporating parts of Mobile.

The legal battle reached the US Supreme Court, which ruled in June 2023 that Alabama’s previous map unlawfully weakened Black voters’ influence. In a surprising 5-4 decision, Chief Justice John Roberts and Justice Brett Kavanaugh joined the court’s three liberal justices in upholding the lower-court ruling.

This ruling reinforced a crucial provision of the Voting Rights Act, affirming that maps cannot be drawn in ways that diminish the voting power of Black communities. The decision is already influencing ongoing legal battles in Louisiana and Georgia, where courts are reviewing whether Republican-drawn maps improperly reduced Black political representation.

With redistricting disputes continuing to unfold in multiple states, these legal and political battles will play a crucial role in shaping the composition of the next US House of Representatives.