Texas Sen. John Cornyn and Attorney General Ken Paxton advanced to a runoff in the Senate GOP primary, extending an already-bruising fight into late May that some Republicans worry could hurt their chances of holding onto the seat — and the Senate.

Tuesday night’s result showed some surprising strength for Cornyn, who had trailed Paxton in most public polls and whose allies were worried might finish far behind the MAGA firebrand. And it indicates the four-term senator still has a real chance to retain his seat in late May.

National Republicans widely expected the runoff when Rep. Wesley Hunt, who finished third, jumped into the race last fall. But while Cornyn is still in the battle, saving him will continue to be an expensive endeavor — and one that risks further damaging Paxton, who could still be their nominee.

The senator and his allies already spent more than $100 million to defeat Paxton, highlighting his political and personal baggage, like his recent divorce, accusations of infidelity, ethics complaints and impeachment proceedings.

Paxton brings huge support from the hyper-conservative grassroots – a devoted following derived from his decade serving as Texas’ top lawyer. He has long been closely aligned with President Donald Trump, supporting his efforts to overturn the 2020 election results.

Trump has not yet endorsed in the race.

Democrats believe they have a shot at flipping Texas after decades of falling short, bolstered by a wave of enthusiasm within the party and backlash to the Trump administration over its immigration and economic policies. They’re hoping that the scandal-plagued Paxton emerges victorious from the runoff and gives them a better opening to entice moderate Republicans and independents.

But Cornyn showed Tuesday that he still has some fight left in him.

Rep. Chip Roy will advance to a runoff in the race to replace Texas Attorney General Ken Paxton.

He will face state Sen. Mayes Middleton in late May.

The competitive primary turned into a fealty test to President Donald Trump. Former DOJ attorney Aaron Reitz and Middleton slammed Roy for breaking with Trump in the past and calling for Attorney General Ken Paxton to resign after he faced charges of bribery and abuse, while brandishing their own MAGA bona fides.

Trump made no endorsement in the race.

Roy — the House Freedom Caucus policy chair who has represented Texas’ 21st congressional district since 2019 — earned a reputation in Congress as a true conservative ideologue. He has led in polling and fundraising, and has been endorsed by well-known conservatives like Sen. Ted Cruz (R-Texas) and fellow Freedom Caucus representatives.