The meeting lasted for about an hour at the vice president's residence at the Naval Observatory in Washington, D.C., the campaign said in a press release.

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A Sanders spokesman indicated that Sanders didn't ask for an endorsement during the meeting, which the campaign said was focused on issues facing the country.

“Under the leadership of President Obama and Vice President Biden, this country has come a long way economically since President Bush left office and we were losing 800,000 jobs every month and the world economy was on the brink of financial collapse,” Sanders said in a statement accompanying news of the meeting.

“Nevertheless, we still have a long way to go to create the kind of economy that works for all Americans and not just the top 1 percent,” he continued.

Biden, who announced just last week that he would not run for president, has recently praised Sanders.

"I’m not a populist like Bernie," Biden said during a fundraising event in Miami last month, reportedly adding that Sanders "was doing a great job exciting his crowds."

"I intend to speak out clearly and forcefully, to influence as much as I can where we stand as a party and where we need to go as a nation," Biden said last week.

“I look forward to working with President Obama and Vice President Biden to tackle some to the major issues facing our country,” Sanders said Thursday.