Noah Millman is
"becoming increasingly convinced that Bob Barr’s candidacy could have a significant impact on the 2008 election." I agree -- between the GOP's collapse and resistance to Obamamania on the part of certain segments of the population, I feel like there's real room for a spoiler candidacy in 2008. What's more, the general pattern in American history is for a coalition's decay to call forth meaningful third party candidacies.
This article available online at:
http://www.theatlantic.com/politics/archive/2008/05/the-barr-factor/44996/