Republican State Senator Pete Flores looks over redistricting maps as the Republicans attempt to pass a bill that would redraw the state's 38 congressional districts, at the Texas State Capitol in Austin, Texas, U.S. August 22, 2025. REUTERS/Nuri Vallbona

By Brad Brooks

(Reuters) -The Texas Senate on Friday debated a bill that redraws the state's congressional maps at the behest of President Donald Trump in an effort to flip five seats held by Democrats to Republicans.

After the state House passed it on Wednesday, the Senate was anticipated to approve it, though the timing was uncertain. Texas Governor Greg Abbott was expected then to sign it quickly into law amid a contentious nationwide redistricting battle.

State Senator Carol Alvarado, a Democrat, said on social media on Friday that she planned to delay the measure by speaking continuously about it in the legislature, a move known as a filibuster. In 2021, Alvarado delayed passage of Texas' district map by speaking for 15 hours straight.

Republicans have acknowledged they believe winning more congressional seats in Texas will help the party maintain its slim majority in the U.S. House in next year's midterm elections despite polls showing headwinds for the party. More states controlled by Republicans are considering similar action.

California and other states where Democrats hold power vow to counter such moves. The California legislature on Thursday approved a redistricting plan aimed at giving Democrats five more congressional seats.

The California plan must be approved by voters in November. The Texas plan does not need voter approval, but Democrats have indicated they will challenge it in court.

The Texas bill was delayed for two weeks after more than 50 Democratic state House members staged a walkout that denied Republicans the legislative quorum needed. They have returned.

During debate on Friday, some lawmakers echoed criticism that Democrats raised in the House, that the new Texas map violates federal law by diluting Hispanic and Black voting power and discriminating on the basis of race. .

Senator Royce West, a Democrat, predicted the new map would reduce the number of African Americans representing Texas in Washington from four to two.

"I call that retrogression," West said.

Texas Senator Phil King, a Republican who sponsored the bill, said repeatedly he had not considered race and lawyers have assured him the bill meets all legal requirements.

"From my perspective, why would I use racial data?" he told his fellow senators. "Voting history is just much more accurate and is well-established as a legal way to draw maps."

Most Americans believe redrawing congressional lines for the sake of maximizing political gain, known as gerrymandering, is bad for democracy, a new Reuters/Ipsos poll found.

(Reporting by Brad Brooks in Colorado; editing by Donna Bryson and Cynthia Osterman)