Credible third party candidates are hard to find.
Fooled by Perot.
Fooled by Buchannan.
Fooled by Nader.
Not fooled by Keyes.
Three times, a fool. Shame on who?
I think the point is that when you get a guy like Perot who essentially ends up pulling support from one camp, then you have a credible threat to hold over the head of a candidate that you could support in other cases. Remember, Perot was a one issue guy: NAFTA. He talked the tax thing, but the anti-NAFTA position appealed to a lot of "Reagan Democrats" who had been voting Republican up till then.
Just my opinion.