He is a winner. Cornyn was not supportive when times were tough.
In the long American drama of loyalty and legitimacy, Donald Trump has chosen Ken Paxton — a man acquitted but not absolved, divorced but not diminished in his patron's eyes — over John Cornyn, a Senate institutionalist whose decades of service could not outweigh a delayed endorsement. The choice, announced on Truth Social ahead of Tuesday's Texas Republican primary runoff, reveals how thoroughly personal allegiance has displaced procedural virtue as the currency of political belonging. What unfolds in Texas may tell us less about one Senate seat than about the kind of party the Republican institution is becoming.
- Trump's late but decisive endorsement of Paxton — a man impeached, corruption-settled, and personally scandal-ridden — has sent shockwaves through a Senate Republican caucus that considered Cornyn one of their own.
- Senators Collins and Murkowski broke ranks publicly, calling Paxton 'ethically challenged' and expressing 'supreme disappointment,' signaling that the party's institutional wing is watching its influence erode in real time.
- Democrats, sensing opportunity, are quietly rooting for Paxton to win the primary, believing his baggage makes him the more beatable candidate in a November race against James Talarico in a state showing unexpected competitiveness.
- Cornyn outspent Paxton by over $65 million and voted with Trump more than 99 percent of the time — and still it was not enough, undone by a single sin: failing to endorse Trump early enough in 2024.
- Early voting is already underway, and Tuesday's result will reveal whether Texas Republicans follow institutional loyalty or Trumpian loyalty — two things that were once assumed to be the same.
Donald Trump has endorsed Ken Paxton in the Texas Republican Senate primary runoff, backing the state's attorney general over incumbent John Cornyn in a race that will be decided Tuesday. The announcement, made on Truth Social, came late in the campaign but may prove decisive.
Paxton carries considerable baggage: a federal corruption settlement, a 2023 impeachment by the Republican-controlled Texas legislature — though he was acquitted in the state Senate trial — and a divorce filed amid allegations of multiple affairs. None of it moved Trump, who instead saw a loyalist. Paxton had championed Trump's efforts to overturn the 2020 election and traveled to New York to stand beside him during the 2024 hush-money trial. 'I know Ken well, have seen him tested at the highest and most difficult levels, and he is a winner,' Trump wrote.
Cornyn, a Senate institutionalist who served in Republican leadership for over a decade, voted with Trump more than 99 percent of the time. But he did not endorse Trump's 2024 campaign until January of that year, long after Trump had entered the race. That delay, Trump made clear, was unforgivable. 'He was not supportive of me when times were tough,' Trump wrote.
The endorsement has unsettled Senate Republicans. Susan Collins called Paxton 'ethically challenged.' Lisa Murkowski said she was 'supremely disappointed.' Democrats, meanwhile, see Paxton as the weaker November candidate — a potential opening in a state that hasn't elected a Democrat statewide in 32 years, though Trump carried it by 14 points as recently as 2024.
Cornyn finished narrowly ahead in March's primary but fell short of the 50 percent threshold, triggering the runoff despite outspending Paxton by more than $65 million. By Tuesday, Texas Republicans will have answered a clarifying question: whether institutional reliability or personal loyalty to Trump is the higher qualification for office.
Donald Trump has thrown his weight behind Ken Paxton in Texas's Republican Senate primary runoff, a decision that has left many of his own party's senators bewildered and concerned. The endorsement, announced on Truth Social, backs the state's attorney general against incumbent John Cornyn, a man Trump himself once called good but ultimately found wanting. The race comes down to Tuesday, and Trump's late entry into the contest may well determine its outcome.
Paxton is no stranger to controversy. He recently settled a federal corruption indictment without admitting wrongdoing. In 2023, the Republican-controlled Texas legislature impeached him on charges of fraud and obstruction of justice, though he was acquitted in the subsequent state Senate trial. His wife filed for divorce last year amid allegations of multiple affairs. Yet Trump sees something else when he looks at Paxton: a fighter, a survivor, and most importantly, a loyalist. As attorney general, Paxton backed Trump's efforts to overturn the 2020 election results. He traveled to New York to support Trump during the 2024 hush-money trial that ended in conviction. "I know Ken well, have seen him tested at the highest and most difficult levels, and he is a winner," Trump wrote.
Cornyn, by contrast, has spent decades in the Senate and served in Republican leadership from 2012 to 2024. He is viewed as a party institutionalist, someone who has worked within the system rather than against it. He voted with Trump more than 99 percent of the time, as he pointed out on X. But that loyalty was not enough. Cornyn did not endorse Trump's 2024 reelection bid until January of that year, more than a year after Trump entered the race. That delay, Trump made clear, was not forgotten. "John Cornyn is a good man, and I worked well with him, but he was not supportive of me when times were tough," Trump wrote.
The endorsement has dismayed Senate Republicans who have worked alongside Cornyn for years. Maine Senator Susan Collins called Paxton "ethically challenged." Alaska Senator Lisa Murkowski said she was "supremely disappointed." Their concern is not merely personal. Democrats view Paxton as the weaker general election candidate, and they see an opening in a state that has not elected a Democrat to statewide office in 32 years. Beto O'Rourke's 2018 Senate campaign came within 215,000 votes of defeating Ted Cruz, a reminder that Texas is not as safely Republican as it once seemed. Yet Trump won the state by 14 points in 2024, and recent polling suggests the November race between the primary winner and Democrat James Talarico will be competitive but not a sure thing.
In the original March primary, Cornyn finished narrowly ahead of Paxton but fell short of the 50 percent needed to avoid a runoff. He outspent Paxton by more than $65 million. Trump promised to weigh in after those results, but months passed before he finally did. During the campaign, Paxton highlighted Cornyn's votes for gun regulations and accused him of being insufficiently aggressive on border enforcement. Cornyn's camp focused on Paxton's scandals and personal failings. Early voting is already underway. By Tuesday, Texas Republicans will have decided whether they want what Cornyn calls a strong nominee to help down-ballot candidates, or whether they will follow Trump's lead and back a man whose political survival has depended less on institutional support than on his ability to weather storms.
Notable Quotes
I know Ken well, have seen him tested at the highest and most difficult levels, and he is a winner. John Cornyn is a good man, and I worked well with him, but he was not supportive of me when times were tough.— Donald Trump, on Truth Social
Paxton is ethically challenged.— Senator Susan Collins
The Hearth Conversation Another angle on the story
Why does Trump care so much about this particular race? Cornyn voted with him 99 percent of the time.
It's not really about voting records. It's about loyalty in the moment. Cornyn didn't endorse Trump until 2024, well after the race started. Trump remembers that hesitation.
But Paxton has been indicted, impeached, and his wife left him over affairs. How does that make him a stronger candidate?
Trump doesn't see it that way. He sees Paxton as someone who stood by him when it mattered—supporting the election reversal efforts, showing up at the trial. That matters more to Trump than the legal baggage.
What do Senate Republicans think about this?
They're genuinely distressed. These are people who've worked with Cornyn for decades. They see him as a friend and a loyalist to the party. They also think Paxton is weaker in the general election, which could hurt everyone down the ballot.
Could Democrats actually win this seat?
It's unlikely but not impossible. Texas hasn't elected a Democrat statewide in 32 years. But O'Rourke came close in 2018, and the state is less reliably Republican than it used to be. If Paxton is the nominee, Democrats will certainly try.
So Trump's endorsement could actually backfire?
It could. But it also might be decisive. Cornyn spent $65 million and still couldn't break 50 percent in March. Trump's endorsement comes late, but it comes at exactly the moment when it might matter most.