“As I’ve said before, the presidency doesn’t change who you are, it reveals who you are. And the same thing is true of a presidential campaign,” she said. “So, if a candidate is erratic and threatening, if a candidate traffics in prejudice, fears, and lies on the trail, if a candidate has no clear plans to implement their goals, if they disrespect their fellow citizens, including folks who make extraordinary sacrifices for our country — let me tell you, that is who they are. That is the kind of president they will be. Trust me.”
It was a rare appearance on the campaign trail for the first lady, who delivered an emotional speech at the Democratic National Convention about her support for Clinton.
Here are Obama’s full remarks during the speech at George Mason University in Fairfax, Virginia: