The Iowa caucus results are here and many are surprised on the GOP side. It became clear in the polls that Trump had a good lead, but he came in a not-that-close 2nd to Ted Cruz, a man who isn't eligible for the job because he was born in Canada. But logic and facts tend to matter little to GOP voters. Though I think Rick Santorum won Iowa last time in 2012, and look how that turned out.
The Democratic side was essentially a tie, but a technical win for Hillary Clinton over Bernie Sanders. Many democrats expected meddling by the DNC, and I think that might be true. The Democratic caucuses in Iowa operate differently than the Republican ones, and they don't make a lot of sense at times. I heard five voting places deciding the results with a "coin toss' with every win going to Clinton. Talk about some "luck" there. Though in terms of delegate count, Clinton has 22 and Sanders has 21.
But usually after Iowa you'll see at least one person drop out of the race. I believe there are only two so far. One is Martin O'Malley who had struggled to get any support away from Clinton or Bernie Sanders. The other is Republican Mike Huckabee who never saw much energy in his campaign. His political stunt making a "hero" out of the bigoted Kentucky clerk Kim Davis did not take many voters from other GOP candidates.