Sanders made the announcement in a call with his campaign staff, his campaign said.
Sanders’ departure from the race is a sharp blow to progressives, who rose up during and after the 2016 campaign and commanded the Democratic Party’s Trump era debates over issues like health care, climate change and the effects of growing economic inequality.
But even as his policies grew more popular over the years and into the primary season, the Vermont senator struggled to broaden his own support and galvanize a winning coalition. Now, as he did after leaving the 2016 primary, Sanders will seek to influence the presumptive nominee through the means he knows best — from the outside.
Biden has already made gestures toward Sanders’ populist base, which formed a movement over the past five years that could be critical to defeating Trump in the fall. Whether the former vice president will take the necessary steps to win over the holdouts, and the extent to which Sanders goes to make the case, will be a running subplot until Election Day.
The Sanders campaign held its final live public event on March 9, transitioning from packed, raucous rallies to an entirely digital operation. He communicated almost exclusively through virtual town halls and livestreams focused on the coronavirus crisis — and how his progressive agenda, headlined by “Medicare for All,” might have prevented it or helped cushion the blow.
Sanders would return to Vermont, where he has spent most of his time since, while Biden set up headquarters at home in Delaware. The Sanders fundraising machine, the most successful grassroots donor effort in American political history, was over the last month re-purposed into a feeder for public health groups.
Fall and rise, and fall
He would quickly hit and surpass that goal and raise, throughout the campaign, more money from small dollar donors than any candidate in American political history.
His status atop the early polls, before Biden got in the contest and claimed the lead, underscored the power Sanders had built up since beginning his first presidential campaign as a little-known lawmaker from Vermont who freely called himself a democratic socialist.
By the end of the 2016 race, Sanders emerged as one of the most influential figures in Democratic politics. His policy agenda — a suite of progressive proposals including Medicare for All, tuition free public college and the Green New Deal — set the terms of debate among the 2020 candidates.
Despite entering with a head start on the field, Sanders’ second campaign encountered some early headwinds as Democratic voters sampled a diverse array of candidates, many of them offering pieces of the progressive vision that Sanders popularized. By the late summer, Sanders appeared to be falling behind fellow progressive Elizabeth Warren, his Senate colleague from Massachusetts.
The young, progressive star, who had been intensely courted by Warren, told Sanders she was endorsing him. Her early events for Sanders in Iowa were electric, but as the primary heated up, her appearances become fewer and further in between — an early sign of the tactical tensions that would face the left in the coming months.
Still, for a campaign that had scuffled through the summer and into the fall, it felt — at least for that moment in mid-October moment — as if a switch had been flipped.
Days later, in a packed riverside park in Queens, New York, after being introduced by Ocasio-Cortez and taking the stage to AC/DC’s “Back in Black,” Sanders addressed one of his largest and most diverse audiences of the campaign.
“Take a look around you and find someone you don’t know. Maybe somebody that doesn’t look kinda like you, maybe somebody who might be of a different religion than you, maybe they come from a different country,” he said.
Aides who had driven and flown in from around the country looked on, rapt like his supporters, some of them watching from across the streets after the park hit its capacity.
“My question now to you is are you willing to fight for that person, who you don’t even know,” Sanders said, “as much as you’re willing to fight for yourself?”
The question — and the call — would be a centerpiece of his campaign in the weeks and months that followed.
A quick unraveling
In the end, and as many on both sides acknowledged privately at the time, it was already too late.
After losing five of the six contests on March 10, including Michigan, and all three primaries on March 17, Sanders campaign manager Faiz Shakir signaled the beginning of the end. Sanders, he said in a statement, “is going to be having conversations with supporters to assess his campaign,” but that “in the immediate term, however, he is focused on the government response to the coronavirus outbreak.”
Sanders batted away questions about the future of his campaign through the latter half of March, as his campaign — with the exception of a handful of combative surrogates and staff who continued to batter Biden — largely retrained its focus on the coronavirus.
As Sanders started to make more television appearances after leaving Washington, he became increasingly frank about his chances of winning the nomination.
“There is a path, it is admittedly a narrow path,” Sanders told “Late Night” host Seth Meyers last week.
But those acknowledgments were mixed in with public arguments for staying in the race — and other remarks, more difficult to discern, that offered some insight into Sanders’ own indecision.
“I mean, right now, under normal times, I wouldn’t be talking to you from my home” Sanders told CNN’s Anderson Cooper in an interview on Friday. “So yes, the calculus has absolutely changed. And you know, we’re talking to a lot of people, and trying to figure out the best way forward.”
Toward the end, the questions often appeared to shape the answers. After being pressed by Whoopi Goldberg on “The View” last week over his reasons for remaining in the race, Sanders sounded like he was settling in for a longer haul.
“Last I heard, people in a democracy have a right to vote,” he said, “and they have a right to vote for the agenda that they think can work for America.”
But in his livestream events, conducted with top aides, advisers and friends, Sanders was more expansive. The pandemic, he argued, had pulled the tide out and revealed in the starkest ways possible the ugliest inequities in American life.
“I think it is not inappropriate to be trying to ask ourselves, how did we get to where we are today, and maybe where we want to go when all this is behind us,” Sanders said on April 4. “And I think some of the questions that we have to ask ourselves, and you have heard me say this a million times, is how does it happen that we are the only major country on earth not to guarantee health care to all people as a human right?”
Five years after he launched a message campaign with the hope of rejuvenating progressive grassroots and keep Hillary Clinton accountable to the Democratic Party’s left flank, and after that bid touched off a movement that has spawned a new generation of leftist leaders, Sanders by the end of his 2020 race had, in many ways, returned to his own beginnings.
Whether Sanders’ decision to the leave the contest now, rather than carrying on as he did in 2016 through the end of the primary calendar, will earn him some goodwill with the party establishment he fought so long and hard to upend, is an open question. An earlier departure won’t blot out the ideological divisions that have roiled the party since 2016.
But the more immediate question facing Sanders, following his departure, and his supporters is whether and to what extent they will lend their support — and organizing energy — to Biden’s campaign.
Sanders has been insistent that he would support the eventual nominee, no matter who it was. But his political base — especially the young, who voted for him by overwhelming margins, and disaffected — will be more difficult to bring along, no matter how many miles Sanders covers on Biden’s behalf.
This story has been updated.