Chris Cillizza's case for Fred Thompson is pretty convincing. Thompson sounds like a much more dangerous candidate than anyone else the GOP has put forward, and given the obvious room for a "true" Republican candidate, I'd be very surprised if he doesn't enter the race. The big, obvious weakness is that he sat atop the Scooter Libby defense team, which means he could possibly be tied to the Bush administration's corruption, but I'm not convinced that will stick. i guess the big hope would be that if he does enter the campaign, voters will get him mixed up with Tommy Thompson, thus dooming both their candidacies.