Bernie Sanders

His front-runner status slipping, Bernie Sanders refocused his Democratic presidential campaign on surging rival Joe Biden as the Vermont senator's allies grappled with the fallout from a Super Tuesday stumble that raised internal concerns about the direction of his White House bid.

A resurgent Joe Biden scored sweeping victories across the country on Super Tuesday, backed by a diverse coalition that helped revitalize a moderate presidential bid teetering on the edge of disaster just days earlier.

A resurgent Joe Biden scored sweeping victories across the country on Super Tuesday, backed by a diverse coalition that helped revitalize a moderate presidential bid teetering on the edge of disaster just days earlier.

The dizzying fight for the Democratic presidential nomination reaches a critical juncture on March 3 as millions of voters from Maine to California head to the polls. Sen.

Bernie Sanders' convincing win in the Nevada caucuses signaled his campaign is gathering strength and reaching voters who had previously eluded him, putting him on a path - for now - toward the Democratic presidential nomination.

Democratic presidential candidate Bernie Sanders said on Feb. 21 he was briefed by U.S. officials "about a month ago" that Russia has been trying to help his campaign as part of Moscow's efforts to interfere in the 2020 presidential election.

Bernie Sanders won New Hampshire's presidential primary on Feb. 11 night, edging moderate rival Pete Buttigieg and scoring the first clear victory in the Democratic Party's chaotic 2020 nomination fight.

U.S. Senator Bernie Sanders and former Indiana mayor Pete Buttigieg emerged as the winners of Iowa's Democratic caucuses after a chaotic contest that saw the final results announced three days late.

A surprising result of the primary election in Iowa. Technology problems and reporting "inconsistencies" kept Iowa Democratic Party officials from releasing results from Monday's caucus, the much-hyped kickoff to the 2020 primary, AP reported. Contrary to expectations, former South Bend Mayor Pete Buttigieg has come to the fore.

Former South Bend, Indiana Mayor Pete Buttigieg and Vermont Sen. Bernie Sanders were in a near-dead heat on Feb. 4 after delayed and incomplete Iowa caucus results showed them holding an early lead with 62 percent of precincts reporting.