Asma Khalid

Wednesday night's Democratic debate in Las Vegas was as contentious as expected. All of the candidates were challenged on the issues, their experience and even on their supporters' behavior.

Six Democratic presidential candidates debate Wednesday night in Nevada ahead of the state's caucuses this Saturday.

Michael Bloomberg will appear in his first Democratic presidential debate Wednesday. But even before he qualified, Bloomberg had drawn the focus — and ire — of several fellow Democratic candidates.

Hours before polls close in the New Hampshire primary, the Democratic presidential race appears unsettled and unpredictable. Will New Hampshire winnow the field or merely extend the confusion?

Though the outcome of the Iowa caucuses stretched out all week, Democrats are in New Hampshire for a debate ahead of the state's primary in four days. Seven candidates qualified for Friday's debate.

With no results declared in Iowa's caucuses Monday night we discuss the implications, and look forward to New Hampshire, as candidates flock to that state for the Feb. 11 primary.

What are the stakes tonight for each of the candidates in Monday night's Iowa caucuses? Here's what the Democratic field stands to gain or lose — and how they're making their final arguments in Iowa.

On the campaign trail in Iowa, many voters seem to care more about the former vice president's one-on-one interactions than the content of his speeches.

A year ago, many progressives told NPR they weren't so sure they wanted to see the Vermont senator run for president again. But now, it appears those voters are coming back.

Bernie Sanders seems to be consolidating support again among progressive voters. A year ago, that wasn't so clear.

Democratic senators were off the campaign trail with the impeachment trial underway, but they still managed to argue about substance and style. Meanwhile, the race in Iowa remains volatile.

With the Iowa caucuses two weeks away, Pete Buttigieg is holding events across the state, making a pitch to people he considers "future former Republicans."

Nearly a third of Iowa's 99 counties swung from voting for Democrat Barack Obama in 2008 and 2012 to Republican Donald Trump in 2016. Howard County saw the biggest swing.

Six Democratic presidential candidates will participate in the last debate before the Iowa caucuses Tuesday night in Des Moines, as the campaign has gotten more combative among top contenders.

Across the country, dozens of counties voted for President Obama and then in 2016 elected President Trump. In Iowa, almost one-third of the state's counties flipped from Obama to Trump.

New Jersey Sen. Cory Booker has suspended his presidential campaign. Though a stirring speaker, he failed to translate that into success in polls.

New Jersey Sen. Corey Booker is the latest candidate to drop out of the Democratic presidential race. Booker did not qualify for Tuesday's debate in Iowa, the second straight debate he's missed.

Iowans say he's charismatic, but polls suggest they're not willing to caucus for him. Why has the New Jersey senator not taken off in the Democratic presidential primary?

As a late entrant in the Democratic presidential primary, Michael Bloomberg is not campaigning in the first primary states and is instead marshaling his billions of dollars into advertising.

President Trump downplayed North Korea's threat of a "Christmas present" if the U.S. doesn't roll back economic sanctions by the end of the year. Also, Notre Dame won't hold a Christmas mass.