Later during Donald Trump's speech, where there were 'Lock her up, lock her up' chants, Donald Trump admonished the crowd and said, 'Be nice'. Earlier, Donald Trump said Michelle opened up a little bit of a box. "I always tried to be so nice and respectful. You know who was nasty to me? Michelle Obama," said Trump, prompting a loud chorus of boos, jeers, and shouts from his audience. "She was really – ooooooh."