Chuck Hagel, a Republican, is quoted in the most recent New Yorker in a piece by Connie Bruck:
There was a political party in this country called the Know-Nothings. And we’re getting on the fringe of that, with these one-issue voters—pro-choice or pro-life. Important issue, I know that. But, my goodness. The world is blowing up everywhere, and I just don’t think that is a responsible way to see the world, on that one issue. And, interestingly enough, that is one issue that stopped John McCain from picking one of the people he really wanted, Joe Lieberman or Tom Ridge. [my emphasis]