The dirty little secret is that the Iowa Caucuses have little to do with electing a Republican candidate. They are more media merchandising opportunity and entertainment than political primary or a chance to evaluate a potential president. Their purpose goes back to ancient Rome and the bread and circuses provided to keep the masses pliant while the emperor and his minions made the real decisions.
MItt runs on D-cell batteries and looks for all the world like he should have a wind up key in his back. He's been called a Ken doll and worse, but it doesn't matter. He'll support the corporate and governmental establishment. He's got the money and the connections and he is the most broadly palatable candidate in the Republican clown car so he is gonna get the brass ring. Santorum may play well in the boonies( and outside of Philadelphia, Pennsylvania is the boonies) but the cigar smoking Washington boys in the back room are definitely not going to let him into the club-- at least not this year.
It's already been decided, so lean back, pass the popcorn and enjoy the show. This all bodes very well for Obama. Thank you, Iowa
cartoon source:: donkeyhotey via flickr creative commons