There are many reasons why it makes no sense to compare talks with Kruschev and Mao with possible talks with Ahmadenijad. Contemporary Iran is nothing like Communist China or the Soviet Union.

To answer the original question of this thread, I'm a Libertarian and have been for close to six years. Before that, I was very much a Republican from the Reagan/Goldwater wing, not the Rockefeller country club wing. As hard as it is to vote for a candidate who has no chance of winning, I've decided it is better to vote one's conscience than to merely choose between the lesser of two evils. In 2008 I believe McCain is the lesser of two evils and there is no way he is getting my vote.