Nikki Haley calls for unity, offers 'strong endorsement' of Donald Trump during RNC speech 17.07.2024 08:05 United Press International (UPI.com) Nikki Haley endorsed Donald Trump during her speech on the second night of the Republican National Convention in Milwaukee, as Florida Sen. Marco Rubio, Gov. Ron DeSantis and Vivek Ramaswamy also addressed the crowd.