Biden claims 10 Super Tuesday victories, including Texas

A resurgent Joe Biden scored sweeping victories from Texas to Massachusetts on Super Tuesday, revitalizing a presidential bid that was teetering on the edge of disaster just days earlier. But his rival Bernie Sanders seized the biggest prize with a win in California that ensured he would drive the Democrats' nomination fight for the foreseeable future.

Arizona Senate candidate Mark Kelly says he’s backing Biden

Arizona Senate candidate Mark Kelly said Monday he’ll vote for Joe Biden in the Democratic presidential primary, throwing his support behind the former vice president as Biden looks to solidify moderate Democrats against Bernie Sanders.

These are the 6 candidates running for president in 2020

The field of 2020 presidential candidates is crowded, with four Democrats currently making a bid for the White House along with two Republicans — one of whom is President Trump.

Democrats eye Super Tuesday even as South Carolina primary looms

The South Carolina primary is just ahead, but the race is quickly going national as candidates pivot to the 14 states that vote on Tuesday.

AP Fact Check: Claims from the Democratic debate on February 25

Seven Democratic presidential contenders staged their final debate before contests in South Carolina and Super Tuesday deliver more than one-third of the delegates needed to clinch the nomination. 

Sanders faces attacks in Democrats' debate-stage clash

Bernie Sanders is facing an unprecedented assault from his Democratic rivals as the party's turbulent nomination fight threatens to explode on the debate stage.

Chamber of Commerce officials say March Democratic debate could be a boon for some Phoenix businesses

Some say the Democratic debate in March, which is scheduled to be held in Phoenix, could bring along some money for some Valley businesses and draw some attention to issues faced by Arizonans.

AP FACT CHECK: Dems' debate flubs; Trump untruths at rally

Remaining Democratic presidential candidates debated one another in Las Vegas while President Trump rallied a crowed in Phoenix, Arizona.

Democratic debate: Candidates fiercely attack Bloomberg over remarks on women, people of color

From the opening bell, Democratic presidential foes unleashed an aggressive verbal assault on New York billionaire Mike Bloomberg and raised new questions about Bernie Sanders' take-no-prisoners politics in a contentious debate.

New Hampshire primary: Sanders wins; Buttigieg follows close behind

Bernie Sanders held a small lead over Pete Buttigieg Tuesday night as final results were coming in in the New Hampshire Democratic primary.

Democratic debate: Candidates clash over electability in struggle to oust Trump

Seven Democrats were facing off in New Hampshire, just four days before the state's first-in-the-nation primary election, for what could be the final debate-stage meeting for multiple candidates. The field has been shaken and reshaped by chaotic Iowa caucuses earlier this week that raised deeper questions about several candidates' political survival.

DNC calls for a 'recanvass' of Iowa caucus results after delays

The chairman of the Democratic National Committee called for the recanvass in order to “assure public confidence in the results.”

Impeachment trial: Split Senate votes to acquit Trump on abuse of power, obstruction of Congress

A majority of senators expressed unease with Trump's pressure campaign on Ukraine that resulted in the two articles of impeachment. But the final tallies — 52-48 favoring acquittal of abuse of power, 53-47 of obstruction of Congress' investigation — fell short.