The former vice president won the Super Tuesday state with the second-largest number of delegates. He only spent around $89,000 there, but his resounding win in South Carolina may have been pivotal.
A lot is on the line in the 2020 primary debate. It might be the last chance for moderates to slow Bernie Sanders' momentum. And who comes out better — Joe Biden or Michael Bloomberg? Here's a guide.
It was former New York Mayor Michael Bloomberg's first debate after spending more than $300 million on ads. He had an uneven performance, especially when it came to his record on women.
An NPR/PBS NewsHour/Marist poll finds that socialism is unpopular with voters overall, even as Vermont Sen. Bernie Sanders is gaining in the Democratic primary.
The pressure was on for the Democratic candidates. Minnesota Sen. Amy Klobuchar stood out, but is it too little too late? Others tried to draw clear distinctions.
Iowa's results still aren't quite settled, but it's clear former South Bend, Ind., Mayor Pete Buttigieg and Vermont Sen. Bernie Sanders finished in what was essentially a tie. What does it all mean?
The candidates clashed over war, gender and health care with less than three weeks to go before the first votes in the Democratic presidential nominating fight.
"This wasn't the right word to use and I'm sorry about that," Joe Biden tweeted after a video resurfaced of him using the term to describe the impeachment of President Bill Clinton.
Elizabeth Warren faced new scrutiny, Pete Buttigieg controlled multiple exchanges, and the potential conflicts of interest of Joe Biden's son got relatively little focus.
Former Vice President Joe Biden and Massachusetts Sen. Elizabeth Warren faced off onstage for the first time, but Vermont Sen. Bernie Sanders wound up taking much of the heat, sparing Warren.
Former Vice President Joe Biden will again be center stage — and the focus will be on how he handles issues of race and whether he looks like he's ready and able to take on President Trump next year.
While former Vice President Joe Biden has a commanding lead in early polling for the Democratic nomination, black women interviewed by NPR all say they are still weighing their options.
What a testy 2005 fight between Harvard professor Elizabeth Warren and Delaware Senator Joe Biden can tell us about the two 2020 presidential candidates
The former vice president, who saw Barack Obama win twice on a unifying message, is betting that will win out over anger. Will that be enough for Democrats, who feel they have good reason to be angry?
Is the 76-year-old former vice president too much a man of the last century? His basic vulnerability is being cast as a candidate of the past in a party selling itself as the party of the future.
As another Supreme Court nominee faces allegations of sexual misconduct, what can be learned from the handling of the Clarence Thomas-Anita Hill controversy?
Vice President Joe Biden turned 74 last month and would 78 after the 2020 election. Biden decided against a run this past cycle, after losing his son Beau to cancer in 2015.
Never known as a big-venue speaker, Hillary Clinton will face a make-or-break moment Thursday night with multiple pitfalls, varying objectives and a variety of critical audiences.
Speaking candidly about the death of his son, the vice president was authentic and raw. If he does run, it's that trait that could make him a dangerous challenger to Hillary Clinton.
