 From ABC News, I'm Sheri Preston. At the Republican National Convention in Milwaukee, it was a night of GOP rivals turned allies. One by one, Republicans who had run against Donald Trump in the primaries went on stage praising him. Ron DeSantis, Vivek Ramaswamy, and as ABC National correspondent Stephen Portnoy reports, the former governor of South Carolina. Nikki Haley told delegates Donald Trump has her strong endorsement, and she delivered this message to Republicans who supported her in the primaries.