The Rover Report: Iowa Style.
Before I get to the Dems, this Rubio flogging is pathetic. The guy finished 3rd even with candidates 1-2 and 4 (Cruz, Trump, Carson) splitting the Nutter vote. Yet he's the frontrunner?

Once Carson exits the race his votes are going to Calgary Ted who's done what he needed to do - consolidate evangelicals. Trump on the other hand had a pretty good showing for a state who's voters he called a bunch of losers. If he buries it in New Hampshire, and Cruz finishes 2nd, there is no path for Rubio. Its either Trump or Cruz.
For the Dems, nice win by Hillary. Not a blowout but that was never in the cards, but she won a state she lost last time, which means she has in fact won over the Obama voters. Sanders needs to get a handle on his supporters, who are going to alienate people who aren't either in college or already on board with his campaign. Booing a rival candidate's speech is poor sportsmanship no matter what party or ideology you represent. Its the kind of thing you'd expect Trump voters to do.
Lastly, happy that Dem turnout was about the same as the GOP. Dems are having a sorta low key contest while GOP is a car crash with a celebrity candidate. That bodes well for the party.