This year's iteration of the Iowa caucuses featured a historically large turnout and a handful of surprising twists. Here & Now's Jeremy Hobson talks with Kay Henderson of Radio Iowa.

One stunning statistic that has emerged from the Iowa caucus is the number of youth voters Bernie Sanders has gotten to caucus and that is why, as the New York Magazine puts it, Bernie Sanders "owns the future of the Democratic Party". There's a significant difference between caucuses and primaries; a ground game matters a great deal in Iowa, where people have to show up and work on behalf of their candidate. But together, their combined vote count - 52 percent - represented a win for outsiders who reject the status quo in Washington. Young voters in Iowa overwhelmingly backed Sanders. The race was so tight that several precincts were forced to decide whether Clinton or Sanders got the winning votes - and one more delegate - by a coin toss, following the state Democratic Party's advice. The results were supposedly the closest in the history of the Iowa Democratic history.

"It's a much different thing to go out and turn out voters on a cold night in Iowa or New Hampshire than it is to attract them to a Trump extravaganza where he provides entertainment for 90 minutes", Cantor told CNBC. Republicans had already been looking to New Hampshire to winnow their congested field, and the Florida senator's strong showing bolsters his case that Republicans should coalesce behind him as the mainstream alternative to the rowdier Trump or Cruz.

Despite the disappointment, Trump still took to the stage to thank his supporters.

It may make sense for Cruz to skip New Hampshire and focus on SC and the Southern states of Super Tuesday (March 1), some analysts suggest. Mr. Trump narrowly won Dubuque County in the east and Woodbury County (Sioux City) in the west-both with Catholic pluralities and possible harbingers of strength in smaller, blue-collar cities like Manchester, New Hampshire. Voters will hold the first primary of the season here on February 9. But there's no reason to think Trump will crash in New Hampshire or SC or anywhere else - not yet, at least. Former Maryland Gov. Martin O'Malley ended his longshot bid for the Democratic nomination, and former Arkansas Gov. Mike Huckabee dropped out of the Republican race.

"Sanders won among very liberal, 58%-39%". For most of the campaign, the conventional wisdom was that Trump was a longshot in Iowa, a state that traditionally favors social conservatives.

After the result Rubio said: "This is the moment they said would never happen".

In the Democratic race, voters must choose between Clinton's pledge to use her wealth of experience in government to bring about steady progress on party ideals and Sanders' call for radical change in a system rigged against ordinary Americans. People may not have crawled through glass to vote for him. A loss in Iowa would have been a problem for Clinton; raising new questions about her viability as a general election candidate.

Hillary Clinton's backers also turned out in force, though they were visibly older and many said they had caucused before.

Into the early hours of Tuesday morning, Clinton and Sanders remained separated by less than a single percentage point.