Texas Attorney General Ken Paxton defeated four-term Sen. John Cornyn on Tuesday, May 26 in a massively expensive, drawn-out U.S. Senate primary race.

Paxton was endorsed by President Donald Trump last week, and his victory showcased the president’s power over his party as he seeks to punish Republicans he sees as insufficiently loyal.

Paxton will run against Democratic state Rep. James Talarico in November.

Democrats are hopeful that their nominee, state Rep. James Talarico, has a rare opportunity to win a statewide race in Texas — and help the party retake control of the Senate — with Paxton as his opponent.

Tuesday’s runoffs also decided Democratic U.S. House nominees for districts in Dallas and Houston that overwhelmingly support Democrats, and a San Antonio-area seat the party wants to flip.

‘I will be the Democrats’ No. 1 target'
In Austin on Tuesday night, Cornyn gave a short concession speech tinged with emotion to a room of only reporters.

“Tonight we’ve come up short,” Cornyn said, adding that he’d support Paxton in the general election. “I’ve always supported the Republican ticket, and I intend to do so again.”

Cornyn said in 2023 as Trump was running to return to the White House that his time “has passed him by," a statement that came back to bite him. He also was an early critic of Trump’s plan for a border wall between the U.S. and Mexico — a project he now supports.

Cornyn had the backing of Senate GOP leaders who said he would be the stronger general election candidate against Talarico, which was also the senator's argument to voters before Tuesday.

That's not lost on Paxton, who said in his speech that “without a shadow of a doubt, I will be the Democrats’ No. 1 target in November.”

Talarico's campaign hit back Tuesday night on the social platform X, highlighting what they — and some Republicans — see as Paxton's weakness, including an FBI investigation and impeachment for corruption in which he was later acquitted.

The primary was long and costly
Cornyn led Paxton in the March 3 primary but failed to win a majority. That was after Cornyn and his supporters waged a monthslong advertising campaign, mostly attacking Paxton over ethical and personal questions.

The two-term attorney general was acquitted on corruption charges in a 2023 impeachment trial, where allegations of extramarital affairs surfaced. Paxton’s wife filed for divorce last year, citing “biblical grounds.”

It gave Cornyn fodder for an ad campaign that, along with allied groups, spent roughly $109 million between the primary and runoff elections.

Immediately after the primary, Trump promised to endorse but didn’t act until after early voting began last week.

“Ken Paxton has gone through a lot, in many cases, very unfairly, but he is a fighter, and knows how to win,” Trump wrote in a social media post endorsing him.

Democrats choose US House nominees
Former Rep. Colin Allred beat U.S. Rep. Julie Johnson in the Dallas-area 33rd District's Democratic primary runoff. Johnson was elected to the seat in 2024, the year Allred lost his U.S. Senate challenge to Republican Sen. Ted Cruz. Allred was running for Senate again this cycle but dropped his bid and instead sought a return to the House.

Newly elected Rep. Christian Menefee defeated veteran Rep. Al Green in Texas' 18th District, dispatching a longtime House incumbent who was one of Trump's most outspoken critics. The Republican-led Texas Legislature redrew the district when it approved a new House map last year. The new map led to a runoff between incumbents and marks the end of a dizzying series of elections in the Houston area.

Near San Antonio, Johnny Garcia won the Democratic primary for Texas’ 35th District against against Maureen Galindo, a candidate who has expressed antisemitic views. While Texas lawmakers redrew the district to help Republicans, Democrats view it as within reach and didn't want Galindo's past comments to impede them.

Garcia will face Republican Carlos De La Cruz, who defeated John Lujan in the GOP primary.