Democrats

Sanders and his supporters are trying to change America, not the positions of another candidate. But his issues are helping to define the Democratic primary.

Bernie Sanders won sweeping victories Saturday and more are sure to come over the next couple months. Can he win the nomination? And is that what really even matters?

Donald Trump has a base that skews heavily toward early deciders. His opponents end up fighting over who's left.

Bernie Sanders has won the Democrats Abroad Primary, with 69 percent of the vote. But where did all the votes actually come from? NPR answers some Dems Abroad FAQs.

You'd think from watching the campaign that foreign trade is super unpopular. But polls show that's not quite true.

For all the attention Donald Trump has gotten, more people have voted for Hillary Clinton than any single candidate. Of course, Republicans have had a much bigger field — and record turnout.

Trump says the new voters he's turning out can put Midwestern swing states in play. But it's a gamble whether he could win over enough white voters for every minority voter he drives the other way.

Democratic turnout this year looks like Republicans' did in 2008. And the GOP's massive turnout looks a lot like Dems' eight years ago.

Sanders has won some of his biggest margins with white men, while Hillary Clinton has won big with African Americans. They might tell you where they can most win in the primaries coming up.

The Vermont independent won the Michigan primary, in part, because of strong support from white men, upset about stagnant wages and jobs sent offshore. Now, that demographic could help him win Ohio.