So far, Republicans have passed new maps in four states. New maps in California and Utah could flip six seats for Democrats.
President Donald Trump and Republicans have launched an unprecedented effort to redraw state congressional maps to help protect theparty’s narrow majorityin the House ahead of the midterm elections in November.
Democrats have responded with redistricting efforts of their own, setting off a series of fights across the country — including in the courts — which will shape the midterm landscape and help determine control of Congress.
Most recently, Florida Gov. Ron Desantiscalled an April special sessionfor the state’s Republican-majority legislature to redraw the state’s congressional lines. He added that he wanted to hold off until the Supreme Court rules on a key provision of the Voting Rights Act that could affect some districts.
This comes after a major defeat for Trump in December, when Republicans in the Indiana State Senateblocked a proposed mapwhich aimed to unseat the state’s two Democratic members of Congress. The failed vote came after Republican holdouts faced months of political pressure and threats of primary challenges from the president and his allies.
CNN is tracking new maps and will continue to update with new state developments.
The US Supreme Courtstayed a lower court’s rulingthat had blocked Texas from using a map that would create up to five new Republican-friendly seats. The ruling allows Texas to use the new map in the midterm elections.
The Trump administration hassued California over its newly enacted map, which was drawn by Democrats and aims to effectively wipe out potential gains made by Republicans in Texas by helping the party flip five GOP seats in the Golden State. The map wasapproved overwhelmingly by votersin November.
Redistricting, or the process of redrawing congressional district boundaries, typically takes placejust once a decade, as states respond to updated population counts after thedecennial census.
But with a historically tight House of Representatives, redistricting has become a critical tactic to shaping the midterm races.
The redistricting process is different in every state. In some places, state legislators can redraw the map on their own, and all that’s needed is the political will. In other states, the redraw might require changing the constitution, a lengthier process which often involves a direct vote of the people.
Overall, Republicans have more opportunities to gain seats through new maps than Democrats do. Republicans have full control of government in more states and many Democratic states haveceded the map-drawing powerto independent commissions, moves some of them are now trying to reverse.
Six out of the nine House members targeted by Republican-enacted maps across the country are Black or Latino.
2025 has already featured an unprecedented level of politically motivated mid-decade redistricting, but there could be even more in store. In many states, legal challenges aim to overturn existing maps. And at the Supreme Court,the justices may be poisedto strike down key parts of the landmark Voting Rights Act, a decision which would open the floodgates to even more aggressive maps andimperil more seats held by people of color.
This story has been updated with additional information