How can you tell the diff between the three? You have one that is a white guy that's sort of liberal, then one Joe Stalin would be terrified of, and another guy that has read his share of "Das Kapitol." I wouldn't think it would be to hard for a liberal to vote for Senator McCain. It is real difficult for a Conservative.
Ps if Mrs. bill clinton doesn't get the nomination I would bet a ton of money she'll go third party.