Sanders Vows to Continue Campaign for President After Clinton Claims Democratic Nomination

U.S. Senator Bernie Sanders vowed to continue his campaign for the Democratic party's nomination for president on Tuesday night, even after his opponent Hillary Clinton declared herself the nominee in a string of primary victories.

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"I am pretty good at arithmetic and I know that the fight in front of us is a very, very steep fight," Sanders said. "But we will continue to fight for every vote and every delegate we can win.

"We are going to fight hard to win the primary in Washington DC," he promised. "And then we take our fight for social, economic, racial and environmental justice to Philadelphia, Pennsylvania."

Earlier Tuesday, Clinton declared victory at an emotional rally in Brooklyn, eight years to the day after she ended her first failed White House run.

"Thanks to you we've reached a milestone," she told supporters. "First time in our nation's history that a woman will be a major party's nominee."

Clinton's speech came eight years to the day after she ended her first failed White House run. She had already secured the delegates needed for the nomination, according to an Associated Press tally, but added to her totals with victories in New Jersey and several other states on Tuesday."

Sanders has repeatedly insisted that he would see through the effort to the Democratic convention in July, by which time he says he plans on swaying the hearts and minds of superdelegates who have largely been in Clinton's favor.