Fred Thompson: Stalking Horse?

Fred Thompson and John McCain are buddies, hell, Thompson was a lazy man's McCain in the Senate, signing on to campaign finance reform among others of McCain's pet projects.

And after last night's wonderful performance, in which he offered a devastating 90 second critique of Mike Huckabee's big government idealism and liberal foreign policy...

... I'm truly wondering if the sole purpose of his candidacy right now is -- and maybe always was -- to run interference for McCain in the South.

Seriously, if you're polling 9 percent. Why go after the guy in second at 18 percent and leave untouched the front-runner at 25 percent?