 Vance, who is 39, was elected to his first office only two years ago. He's a Marine Corps veteran, author of a best-selling memoir, and former venture capitalist. Vance backs Trump in denying that the former president lost the election in 2020. Vance told CNN in May he'll only accept this November's results if there's a, quote, free and fair election. Trump also made a late-night appearance at the Republican National Convention. NPR's Ben Giles reports from Milwaukee.