The results in New Hampshire show a Democratic Party in the state that is deeply ruptured demographically and ideologically -- in a way that happened to very much favor Bernie Sanders on Tuesday night.
It's easier to talk about the groups with whom Sanders didn't dominate in New Hampshire on Tuesday night than it is to talk about the ones where he did.
Hillary Clinton did better with groups that aren't too worried about the economy, according to preliminary exit poll data reported by CNN. She did better with those who'd rather continue the policies of President Obama than those who want to move in a more liberal direction (a group Sanders won by a 4-to-1 margin). She won people that were in the same age range as herself and the senator.
Other than that, the state of New Hampshire was Bernie Country. The deep splits we saw in Iowa were still there, but the split wasn't between voting for Sanders and voting for Clinton, it was between voting for Sanders by a little and voting for Sanders by Kim Jong Un-style margins.
Sanders won two out of every three men, and notably slightly more women than Clinton, according to the most recent exit polls. Sanders won young voters -- those under 30 -- by about 70 percentage points. He won those aged 45 to 64 with a slight majority. He won two-thirds of non-college graduates and a little over half of those with degrees. Sanders won six in 10 voters with household incomes of less than $100,000, and a bare majority of those earning $100,000 or more.
In other words: If Clinton won the demographic by a lot in Iowa, odds are good that Sanders won it by a little in New Hampshire.
New Hampshire allows independent voters -- a substantial part of the voting population -- to vote in the party primary of their choosing. Interestingly, Sanders and Clinton essentially tied among Democrats -- but Sanders won those not registered with a party nearly 3-to-1. Twice as many independents voted in the Democratic primary (percentage-wise) in New Hampshire than caucused with the Democrats in Iowa.
That these demographic splits are so much more stark than the splits on the Republican side is a function of two things: That there are only two Democrats left in the race, and that the Democratic coalition is itself so diverse.
Buried in the responses, though, is a strain of animosity. More than a third of voters said they would not be satisfied if Clinton won the nomination, while 1-in-5 said the same of Sanders. Among those who said that the most important trait was honesty, Sanders won 9 in 10 votes. Among those looking for experience, Clinton won by a similar margin. Clinton backers think Sanders is too liberal; his supporters think she's not liberal enough.
The states that follow Iowa and New Hampshire introduce a new split in the party: racial diversity. We can expect that the other splits will show up there, too, adding another dimension of complexity to this once-uncomplicated race.