"If they think that they're going to try to make Michelle an issue in this campaign, they should be careful, because that I find unacceptable — the notion that you start attacking my wife or my family," he said. "For them to try to distort or to play snippets of her remarks in ways that are unflattering to her I think is just low class and I think they — most of the American people would think that as well," he said. "I would never think of going after somebody's spouse in a campaign." "If that's something I start seeing during the course of this general election, I will have something to say about it. And I will say something to the Republican nominee, [Arizona Sen.] John McCain, about it because I would never consider going after his family," he said. "If I saw Democrats doing that, I would call them out on it. And I would expect that he's going to do the same thing because I think that family is off limits."