I'd love to see Ron Paul win the Republican Primary in New Hampshire, and freak out the Republican Leadership. And I think that is a possibility. The problem is that the Republican Party Leadership would "Buchanan" him (meaning the Republican Leadership Deep-Sixed Buchanan when they figured out he wasn't beholden to big business, all other issues, and with Buchanan I have many are irrelevent).
I'd wouldn't terribly mind a Tancredo although the Republican Leadership would do the same to him.
Chances are the Republicans will get Romney or McCain, and loose in a dismal example of how not to treat your base. Then, atleast 4 years we will have either Clinton or Obama, horrible choices for the future of America.
The only chance the Republicans have is to get a populist candidate with a right lean (or stronger) who nevertheless is anti-Iraq War (whether phased reduction, or pull out now), pro-secure borders, and wants to secure the border, and will atleast promise to attempt preserving social security (although that is a lost cause).
The Democrats will have some key weaknesses, but those weaknesses have to be attacked effectively. If you have a Mitt Romney, Guilliani, McCain up there, they will not.
But get a Republican talking about illegal immigration, SS benfits to illegals (something the Dems support), who talks about pulling out of NAFTA, and talks about can show he has been against the war from the beginning (that would be a descriptions of Paul) and the Republicans will stand a chance.
I ain't holdin' my breath. Although I've already volunteered for Paul's campaign.