He also dismissed the idea that the state is a must-win for him.
Sixty-two percent of searches for Democratic candidates in New York were for Sanders.
Sylvan Lane 04/19/16 10:39 AM EDT
Biden praises Sanders for highlighting income inequality.
Sanders made just over $200,000 in 2014, according to his tax returns.
The actor is hosting two high-dollar fundraising events for Hillary Clinton this weekend.
The Democratic candidate celebrated a victory in a game of dominoes in a Harlem senior center.
Sanders will be back in the U.S. on Sunday, two days before the New York primary.
"I think the tone is different because we’ve won seven of the last eight state contests," he said.
The two candidates clashed on lifting the cap on taxable income.
Sanders defended his view that Israel’s response in Gaza in 2014 was disproportionate.