Danielle Kurtzleben

The issue of trade has been an important dividing line within both parties this year. Democratic and Republican candidates are backing away from supporting free trade amid voter concerns and a rising tide of populism.

Republicans continued to post stunning voter-turnout numbers Tuesday night. In the four states that voted on the GOP side, turnout far exceeded what the party saw in 2012.

In Hawaii's, Michigan's and Mississippi's Republican races, turnout this year was 30 to 40 percent higher than it was in 2012. Idaho ...

Here's the short version of Tuesday night's primaries (and one caucus): Donald Trump won big, Bernie Sanders pulled off a major upset, and Marco Rubio had a bad, bad night.

Those were the outcomes, but how did they happen? Here are four big takeaways from the exit polls in Michigan ...

The results from Tuesday's four primary and caucus states are in: three wins for Trump, one each for Clinton and Cruz, and one surprising, narrow victory for Sanders.

Bernie Sanders' tight win over Hillary Clinton in Michigan is the biggest news out of Tuesday night's presidential nomination races. Though Clinton ...

This story is part of NPR's fact-checking series, Break It Down.

Bernie Sanders and Hillary Clinton will face off in the Michigan primary on Tuesday, at a time when the state's major cities have seen better days. Flint faces a lead-tainted-water crisis, while Detroit is still reeling from its ...

Not even the best political forecasters could have guessed that Donald Trump's hand and genitalia size would become 2016 presidential campaign topics. But they have, and it's thanks in large part to Florida Sen. Marco Rubio.

Rubio insulted Trump on the campaign trail last week by claiming the business mogul ...

If voter turnout is any indicator of enthusiasm, this year's GOP voters are way, way more pumped than 2012 voters were. Democrats, meanwhile? Their excitement seems to have dimmed since 2008.

Last night, more than 8.5 million Republicans turned out to vote in the 11 GOP Super Tuesday states that ...

It's the biggest voting night yet this year: Voters went to the polls and caucus sites in 13 states Tuesday, with 1,460 delegates at stake. And while results are still coming in, it's already clear: It's a great night for Hillary Clinton and Donald Trump.

Even across the wide array ...

Hillary Clinton's win in the South Carolina Democratic primary was a blowout, and black voters in particular are being credited with handing her that victory. More than 8 in 10 black voters in that state voted for Clinton, according to exit polls. If that trend holds, she could have a ...

Donald Trump picked up his first congressional endorsements this week, and today he scored another major backer: one of his former rivals, Chris Christie.

"I've gotten to know all the people on that stage. And there is no one who is better prepared to provide America with the strong ...

Ahead of Thursday's Republican debate, pundits agreed that someone — and Marco Rubio in particular — needed to attack Trump.

And in that sense, the debate didn't disappoint. Rubio and Texas Sen. Ted Cruz took aim at the real estate mogul who is leading the GOP field heading into Super ...

What exactly did we learn about the Latino vote this weekend? Take your pick of headlines.

• "The entrance polls said Nevada's Latinos voted for Bernie Sanders. That's unlikely." (Vox)
• "Did Bernie Sanders really just win the Hispanic vote in Nevada? There's good reason to think that, yes, he ...

Evangelical voters are often talked about as a key part of the electorate. But the actual number of evangelical voters and their religious beliefs are not nearly as clear-cut as pundits think.

Hillary Clinton will win the Nevada Democratic caucuses, the Associated Press is reporting.

With 84 percent of the precincts reporting, Clinton has 52.5 percent of the vote, compared to Sen. Bernie Sanders' 47.5 percent.

"Tens of thousands of men and women with kids to raise, bills to pay, and dreams ...

In the battle for primary votes, Hillary Clinton and Bernie Sanders are locked in a tight battle.

But you wouldn't know it to look at the superdelegates. In the unseen battle for these party insiders, Clinton has an overwhelming lead. Of the 712 Democratic superdelegates, 449 (or about 63 percent) ...

Recent claims about Bernie Sanders' economic proposals are hurting the Democratic Party, say four former White House economists.

In an "open letter" posted Wednesday morning, former Council of Economic Advisers chairs blast a recent analysis from UMass-Amherst economics professor Gerald Friedman that the Sanders camp has praised in recent ...

In Thursday night's Democratic debate, Hillary Clinton and Bernie Sanders — each with one nominating contest victory — looked ahead to the upcoming primaries in Nevada and South Carolina. Here are a few of the big takeaways from the debate.

1. A focus on African-American issues

Thursday's debate may have ...

If you can't figure out what the establishment is, the political philosopher Jack Black has a good definition.

"You don't know the man? Oh, well, he's everywhere. In the White House, down the hall," he rants in the movie School of Rock. He adds, "And there used to be ...

This post was updated at 4:50 p.m. ET to reflect revised delegate counts

Bernie Sanders delivered the second-biggest rout in New Hampshire Democratic primary history last night, besting Hillary Clinton by 22 percentage points.

That's important, because it hands him a crushing victory, lots of momentum and money to ...

NPR's politics team fact-checks the Republican presidential debate. Much of the policy discussion focused on taxes, including a claim by Donald Trump that the U.S. is the most-taxed country on Earth.