(FILES) US President Donald Trump waves upon arrival, alongside Attorney General of Texas Ken Paxton (L) in Dallas, Texas, on June 11, 2020, where he will host a roundtable with faith leaders and small business owners. US President Donald Trump on May 19, 2026, endorsed scandal-plagued Texas attorney general Ken Paxton over incumbent John Cornyn in a high-stakes Senate primary runoff, siding with a loyalist over the establishment conservative backed by Republican leaders. The endorsement, delivered a week before the May 26 vote, was a blow to Cornyn, a four-term incumbent whom national Republicans have spent tens of millions of dollars defending as the stronger candidate for November's midterm election. (Photo by Nicholas Kamm / AFP via Getty Images)