Vermont

The top contenders in both the Democratic and the Republican presidential nominating races have roughly equal support among members of their respective parties, according to a national Reuters/Ipsos poll released on April 12. 

Bernie Sanders won the U.S. presidential Democratic nominating contest in Wyoming on April 9, besting rival Hillary Clinton and adding to a string of recent victories as the two candidates gear up for a crucial matchup in New York. 

Democratic presidential contender Bernie Sanders easily won nominating contests in Alaska, Washington and Hawaii on March 26, chipping away at front-runner Hillary Clinton's commanding lead in the race to pick the party's candidate for the White House.

U.S. Democratic front-runner Hillary Clinton suffered a surprise loss to challenger Bernie Sanders in a major state primary March 8, as billionaire Donald Trump notched a trio of easy victories in the Republican presidential nomination race.

Republican presidential hopeful Ted Cruz split victories in four nominating contests with front-runner Donald Trump on March 5, bolstering Cruz's argument that he represents the party's best chance to stop the brash New York billionaire. 

Republican Donald Trump and Democrat Hillary Clinton took big steps toward securing their parties' presidential nominations  on March 1 with a series of state-by-state victories, but their rivals vowed to keep on fighting.

On Super Tuesday, the 2016 campaign's biggest day of nominating contests, Trump, 69, and Clinton, 68, proved themselves the undisputed front-runners. 

Two days after her humiliating New Hampshire defeat, White House hopeful Hillary Clinton sought to regain the upper hand against her Democratic rival Bernie Sanders in their debate on Feb. 11, denouncing his proposals as unrealistic and costly.

Donald Trump and Bernie Sanders resoundingly won Tuesday's presidential primaries in New Hampshire, riding a wave of anti-establishment anger in the second key test of the long, unpredictable race for the White House.

Michael Bloomberg, the former New York mayor and billionaire media owner, has stated for the first time that he is considering launching a White House bid this year.

Hillary Clinton mounted a sharp attack on White House rival Bernie Sanders on Feb. 4, accusing her Democratic challenger of waging a smear campaign and warning his promises of revolution "don't add up."