Senator Bernie Sanders speaks at his California primary election night rally in Santa Monica ( David McNew/Getty Images)

Under intense pressure from top Democrats hoping to coax him gently out of the race, Bernie Sanders has vowed to continue his campaign to the very last contest in the District of Columbia next Tuesday saying "the struggle continues."

Party leaders want to have a chance to win over sanders voters as they focus solely on Donald Trump now that Hillary Clinton is the presumptive Democratic presidential nominee.

Despite the pledge to solider on, there are signs Sanders is listening. In his typically passionate remarks, the socialist firebrand repeatedly noted "we are in this together" and argued that a base tenet of his campaign was that "we will not allow right-wing Republicans to control our government."

Sanders said he called Clinton to congratulate her on the victories.

The senator is scheduled to return home to Burlington on Wednesday, before coming to Washington Thursday for meetings, including one with the president and a campaign rally.

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