 And I think I've demonstrated that I know how to get things done for the country, in spite of the fact that we couldn't get it done. But there's more to do, and I'm reluctant to walk away from that. Among the speakers at night two of the Republican National Convention, Nikki Haley, former U.N. ambassador during the Trump administration, turned Trump critic when she was competing with him for the Republican presidential nomination that Trump has now secured.