Two Texas House Republicans have endorsed Texas Attorney General Ken Paxton’s 2026 Senate bid — breaking with longtime GOP Sen. John Cornyn for what’s anticipated to be a heated primary contest.

Rep. Lance Gooden (R-Texas), a staunch ally of President Donald Trump, announced his backing of Paxton in a statement first shared to Fox News on Thursday.

“Attorney General Paxton is the conservative champion we need in the U.S. Senate,” Gooden wrote.

He added that Paxton “will take a sledgehammer to the establishment, secure the border, and fight hard for President Trump’s agenda. Ken Paxton has my complete and total endorsement.”

Gooden’s endorsement comes two days after Paxton, a widely known MAGA firebrand, launched his highly anticipated 2026 Senate campaign to challenge Cornyn.

“It’s definitely time for a change in Texas,” Paxton said. “We have another great U.S. senator in Ted Cruz. And it’s time we have another great senator that will actually stand up and fight for Republican values, fight for the values of the people of Texas, and also support Donald Trump.”

Gooden isn’t the first Texas Republican to throw his support behind Paxton. Rep. Troy Nehls (R-Texas) touted his backing of the attorney general’s campaign bid Wednesday.

“He’s a bulldog, and that’s what we need in the Senate,” Nehls told Blue Light News.

Cornyn and Paxton are longtime ideological rivals. Paxton has repeatedly attacked Cornyn for what he views as inadequate embracing of Trump, and Cornyn recently bashed the Trump rabble-rouser over his legal scandals.

Cornyn recently earned the backing of Senate Majority Leader John Thune, who beat Cornyn in last year’s battle to replace Sen. Mitch McConnell (R-Ky.) as the party leader in the chamber. The NRSC — led by Sen. Tim Scott (R-S.C.) — also said it would support the incumbent.

While both moves were expected, it signals the primary could get incredibly expensive — and that national Republicans could be willing to spend to back the longtime lawmaker.

But the Republican endorsement that will likely hold the most weight is Trump’s. While the president has yet to announce whom he’ll support, Trump and Paxton have long been closely aligned.

Ben Jacobs contributed to this report.