Despite early markers of success, progressive US senator has struggled to win over fan base of Bernie Sanders, leading to poor numbers; says she's not dropping out yet, though

Vermont senator also claims home state, Utah and Colorado; former VP takes Virginia, North Carolina, Oklahoma, Massachusetts, Alabama, Tennessee and Arkansas; no wins for Warren

Sanders grabs a home-state win in Vermont; voting ongoing in the two biggest prizes of the night, Texas and California; Tennessee voting extended after tornadoes

Leading candidates to face off against Trump look to rack up delegates ahead of party convention; Bloomberg appears on ballots for first time

Former US vice president hopes to turn South Carolina victory into national movement, but also faces challenge by Michael Bloomberg, who is testing his strength for the first time

US president says former VP would be 'put into a home' while others run the White House, should he be elected, day before 10 states hold primaries

Following his strong showing in South Carolina, members of Democratic party's moderate wing rally to former US VP, amid growing concerns over potential Sanders victory in primaries

Former VP's blowout victory in Saturday's South Carolina primary positions him as the main moderate challenger to Democratic front-runner Bernie Sanders

Buttigieg rose from being a small-town Midwestern mayor, becoming first openly gay candidate to seriously contend for the presidency

Former US vice president pauses Sanders' momentum, scoring well with African Americans ahead of crucial contest in 14 states; Tom Steyer drops out of race