Bernie Sanders is being urged by some of his top aides, including his campaign manager, to consider withdrawing from the 2020 Democratic presidential race, sources have told the Washington Post.

Campaign manager and longtime strategist Faiz Shakir and Washington Rep. Pramila Jayapal are among those urging the independent Vermont senator to reconsider his campaign, according to the Post.

Jeff Weaver has also privately expressed that exiting the race more quickly would give Sanders more leverage down the road, the Post reports.

As of now, Sanders has not made any official decision but told MSNBC Friday that he was taking “a hard look” at his future.

Sanders' chances are looking increasingly slim after suffering a series of losses to former Vice President Joe Biden in most of the primaries that took place in early March. Polls also give Biden a victory in this week's Wisconsin primary.

Despite the odds, others, including Michigan Democrat Rep. Rashida Tlaib and campaign co-chair Nina Turner, are continuing to support Sanders' campaign.

Following the latest round of primaries three weeks ago, Shakir announced that Sanders would “assess his campaign.”

“In the immediate term, however, he is focused on the government response to the coronavirus outbreak and ensuring that we take care of working people and the most vulnerable,” Shakir said.

Meanwhile Biden has made a direct appeal to Sanders supporters after moving closer to receiving the Democratic nomination.

"Senator Sanders and his supporters have brought remarkable passion and tenacity to these issues, and together, they have shifted the fundamental conversation in the country," Biden said.

"And let me say, especially to the young voters who have been inspired by Senator Sanders: I hear you. I know what is at stake. And I know what we have to do,” the 77-year-old added.