Republican lawmakers across the South are racing to redraw their states' congressional maps, seizing on a Supreme Court ruling last month that struck down Louisiana's second majority-Black congressional district as an unconstitutional racial gerrymander. Within days of the decision, legislatures in Louisiana, Alabama, Tennessee, and South Carolina launched redistricting efforts that could shift multiple House seats toward the GOP, and Democrats are scrambling to stop them in court.
The push marks the most aggressive wave of mid-decade redistricting in recent memory. Tennessee's governor signed a new map into law Thursday. Alabama Republicans approved legislation Friday to hold new primaries under a friendlier map. Louisiana delayed its House primaries and began public hearings on replacement maps. And South Carolina's state House voted to extend its legislative calendar, leaving the door open for its own redraw.
For Republicans trying to hold a narrow House majority through the 2026 midterms, the math is straightforward. Mid-decade redistricting changes so far have created 14 more House seats Republicans believe they could win, compared with six that could favor Democrats, a potential net eight-seat GOP advantage. For Democrats, the stakes are existential in states where they already hold only a handful of seats.
Louisiana sits at the center of the fight. The Supreme Court ruled late last month that the state's addition of a second majority-Black congressional district amounted to an unconstitutional racial gerrymander under Section 2 of the Voting Rights Act. The justices upheld a prior federal court decision that barred Louisiana from using a Legislature-drawn 2024 map, which had created a district stretching from Shreveport to Baton Rouge currently represented by Democratic Rep. Cleo Fields.
Louisiana officials responded by delaying House primaries initially set to begin May 16 until July 15, or "such time as determined" by the state Legislature. A state Senate committee began hearing public comment on redistricting Friday, and the full Legislature is expected to vote on new maps next week. Fields is one of just two Democrats in Louisiana's six-member House delegation.
Justin Levitt, a constitutional law professor at Loyola Law School who maintains the website All About Redistricting, raised concerns about the process of halting elections already underway. He told The Hill:
"In Louisiana in particular, the governor sort of declared an emergency, but only for some races on the ballot, which shows you that there isn't an emergency, because if there were a real emergency, you wouldn't stop the voting for just some of the races."
Levitt's objection is procedural, not substantive. The Supreme Court found the existing map unconstitutional. Louisiana's Legislature has every right, and arguably an obligation, to draw a lawful replacement. The question is how fast, and under what rules.
Tennessee moved fastest. Gov. Bill Lee, a Republican, called a special session on redistricting the previous week. By Thursday, lawmakers had approved a new congressional map and Lee signed it into law the same day.
The new map splits Democratic Rep. Steve Cohen's Memphis-based 9th Congressional District into three separate districts. It also further divides Nashville into five districts. Cohen, who has represented his district for nearly two decades, posted on social media Thursday:
"And just like that, the TN GOP voted to enforce a racial gerrymander of Memphis and strip our city of effective representation for decades."
He followed up: "Trump knows he HAS TO rig the game to keep his majority in November. And the TN GOP was willing to go along with it. It's shameful. Next stop is the courts."
The Tennessee Democratic Party made good on that promise, filing suit Friday to prevent the state from using the new districts until after this year's elections. Tennessee's nine-member House delegation currently includes Cohen as the sole Democrat. Sen. Marsha Blackburn urged Tennessee lawmakers to reconvene, saying on X: "I urge our state legislature to reconvene to redistrict another Republican seat in Memphis."
President Trump himself weighed in on Truth Social, calling on lawmakers to "work hard to correct the unconstitutional flaw in the Congressional Maps of the Great State of Tennessee." The framing matters: Trump and Republican leaders cast the existing maps as the constitutional problem, not the fix.
Alabama Republicans approved legislation Friday directing the governor to schedule new primary elections this year under a GOP-friendly map, but only if courts first lift an existing injunction. That injunction currently requires the state's map to remain in place until after the 2030 Census.
The bill would allow the governor to bypass the May 19 primary date for some congressional districts and hold a new congressional election. A prior ruling had required Alabama to draw a second district where Black voters make up close to a majority, which led to Democratic Rep. Shomari Figures's election in 2024.
Whether the court lifts that injunction remains, as Decision Desk HQ chief elections analyst Geoffrey Skelley put it, "up in the air." Republican legislative leaders in Alabama said the move would "give our state a fighting chance to send seven Republican members to Congress", up from a delegation that currently includes two Democrats. Demonstrators gathered outside the Alabama Statehouse in response.
Democratic strategist Jared Leopold framed the effort in historical terms:
"This is not just a one-election issue. This is, from a historical perspective, your Republican legislators are effectively trying to get rid of Black representation in Congress, and that is going to have some serious implications that go beyond any one election."
That accusation deserves scrutiny. The Supreme Court itself found that Louisiana's majority-Black district was drawn using race as the predominant factor, the very practice the Voting Rights Act was supposed to prevent. Republicans argue they are following the court's guidance, not defying it. Democrats argue the guidance is being weaponized. Both sides have litigation ahead.
South Carolina is further behind but moving in the same direction. State House lawmakers voted Thursday to extend their legislative calendar, leaving open the possibility of drawing new congressional lines. The state Senate adjourned Thursday without acting on the extension but is expected to take it up next week.
If South Carolina successfully redistricts, the changes would likely give Republicans a 7-0 advantage in the state's U.S. House delegation. Rep. James Clyburn, the lone Democrat representing South Carolina in the House, posted a series of statements on X criticizing the push:
"Republicans in the South Carolina state legislature began the process of extending their session to allow for the redrawing of the state's congressional map, with one goal in mind: eliminating the state's only Democratic House district that is occupied by a Democrat."
Clyburn added: "Republicans are trying to break apart South Carolina's 6th District. Not because voters demanded it, but because Donald Trump requested it." His district sprawls around Columbia and Charleston. Trump reportedly called South Carolina lawmakers directly to urge redistricting.
Skelley noted that pressure from the White House carries weight, pointing to what happened in Indiana: "Especially after what we just saw in Indiana, with the state senators mostly losing renomination, that figures in the South Carolina State legislature are going to be more reticent to cross President Trump on this." The lesson from Indiana's primaries was clear, Republican legislators who bucked a Trump-backed redistricting plan paid a political price.
Meanwhile, Virginia delivered a separate jolt to Democrats on Friday. The Virginia Supreme Court invalidated a redistricting plan that voters had approved last month. That plan would have expanded Democrats' edge by as many as four seats in the state's House delegation. With the ruling, the previous map stays in place. Senate Republicans have warned that House GOP gridlock could damage the party ahead of the midterms, but the redistricting gains may offer a structural cushion against that risk.
Skelley said of Virginia: "Knowing exactly how it's going to play in 2028 is hard to say, but I do think that for Democrats, it had been a lot more certain that they would have long-term gains from Virginia. Now that's gone."
The redistricting wave did not materialize out of nowhere. Levitt traced the current cycle to a Trump-backed map in Texas last year that he described as launching a redistricting "tit-for-tat." President Trump has since called on state legislatures to act, posting: "We should demand that State Legislatures do what the Supreme Court says must be done."
More than a dozen states could revisit as many as 33 congressional districts in the wake of the ruling, and Georgia and Florida are also signaling interest. Georgia gubernatorial candidate Rick Jackson said in a statement: "There is no time to waste. Georgia must act now."
Democrats, for their part, are fighting on multiple fronts, in courtrooms, on social media, and through public pressure campaigns. But the structural problem they face is real. They hold vanishingly few seats in Southern delegations, and the Supreme Court just removed one of their strongest legal tools for preserving those seats. Some Democrats have acknowledged their party cannot simply define itself in opposition to Trump and expect to win. The redistricting fight underscores that challenge in concrete, district-by-district terms.
Levitt offered a bleak forecast: "I think it gets worse before it gets better. I think we haven't seen the worst of it yet, and I think there are a lot of other states that are feeling enormous amounts of pressure to join the race to the bottom." Skelley agreed that "this redistricting conflict is far from over."
The open questions are significant. Will courts lift Alabama's injunction before the 2026 cycle? Will Tennessee's lawsuit succeed in blocking the new map this year? Will South Carolina's Senate act next week? And will the Supreme Court's ruling continue to ripple outward into states like Georgia and Florida?
What is not in question is the direction of the current. Republicans hold the governorships, the legislative majorities, and now a favorable Supreme Court precedent. Democratic frustration is mounting across multiple fronts, from redistricting losses to internal party disputes over identity and strategy.
Democrats built many of these majority-minority districts over decades using the very race-conscious line-drawing the Supreme Court just called unconstitutional. Now they are asking courts to preserve maps the highest court in the land has said violate the Constitution. That is not a strong legal position. It is not a strong political one, either.
Republicans are actively courting vulnerable Democrats at every level, and the redistricting push is the structural version of the same play. When the maps change, the math changes. And right now, the math is moving in one direction.
The Supreme Court told states to stop drawing lines based on race. Republican legislatures are listening. If Democrats wanted different maps, they should have drawn constitutional ones.
