Trump hints at controversial choice in massive Texas GOP endorsement battle

President Donald Trump expressed doubt about Sen. John Cornyn's viability as a candidate in Texas's competitive Republican Senate primary, raising questions about the incumbent's standing with the party's base.

In a phone interview with NBC News, Trump downplayed claims that Cornyn represents the GOP's strongest chance to retain the seat against Democratic nominee James Talarico. "I've heard that. I don't know. I mean, I don't know. I don't know that to be a fact," Trump said when asked whether Cornyn was the party's best option.