The debate is likely to include the three candidates that appeared Saturday in Des Moines, Iowa. In case you can't tune in for next month's debate, there's a forum later this month.
Here's how voters view former U.S. Secretary of State Hillary Clinton, Vermont Sen. Bernie Sanders and former Maryland Gov. Martin O’Malley.
Watch the Democratic Party's three U.S. presidential candidates debate economic issues in Des Moines, Iowa, live online.
Environmental activists and Democrats had been hoping the president would reject the project before global climate talks in Paris this month.
Hillary Clinton, in a new poll, holds a commanding lead over Sen. Bernie Sanders in the first-voting state of Iowa.
The vice president dismissed the Beltway columnist's portrayal of his son in his last days.
The vice president also said he didn’t have a “Hollywood-esque” moment with his son Beau about campaigning.
Bernie Sanders issues his sharpest criticisms yet of Hillary Clinton's positions on key issues such as the Trans-Pacific Partnership, same-sex marriage and the Iraq war.
During a rally for Democrats on Friday, the president accused Republicans of constructing a gloomy, “entire separate reality.”
AFSCME, which represents state, county and municipal workers, is backing the Democratic front-runner's White House bid.
The former Rhode Island governor -- considered an extreme long shot for the White House -- has ended his presidential campaign.
The Republican presidential front-runner used Joe Biden's Wednesday announcement as an opportunity to hurl criticism at Clinton, the Democratic front-runner.
Vice President Joe Biden and Hillary Clinton have a long history, sometimes marked by tension.
Vice President Joe Biden isn't running for president, but he's provided plenty of entertainment as a No. 2.
After months of speculation, Vice President Joe Biden announced Wednesday that he will not run for president.
In a new poll, Trump garnered the support of 32 percent of Republicans and Republican-leaning independents who are registered to vote.
The former U.S. senator from Virginia complained that the Democratic Party's first debate was rigged.
President Barack Obama will meet Monday with 10 executives as part of a White House strategy to enlist the private sector in developing technologies to address climate change.
To parents of active-duty soldiers and veterans, U.S. President Barack Obama's decision to keep thousands of troops in Afghanistan was much more than politics.
Any U.S. presidential campaign run by Vice President Joe Biden would be an "optimistic campaign," says former U.S. Sen. Ted Kaufman, one of his advisers and close friends.
"Face the Nation" host John Dickerson is lined up to moderate the second Democratic Party debate Nov. 14 at Drake University in Des Moines, Iowa.
The Hillary Clinton campaign and Donald Trump live-tweeted, while Sanders' campaign paid to promote the Twitter trend #DebateWithBernie.