Is there a Presidential candidate for the nomination of the party you usually vote for that so turns you off, that if that candidate receives the nomination, you would vote for the other party?

Given the apparent alienation of large segments of each party’s usual base for candidates like Clinton, Giuliani, and to a lesser degree, Obama and Romney, if a candidate you dislike won their party’s nomination, would you vote for the other party’s candidate? Please specify which candidate you dislike, and whether their nomination would result in you grudgingly voting for them in the general election, voting for the opposition party, voting for a 3rd party (and if so, who?) or not voting.