But the momentum continued to slow this week after big losses along the eastern seaboard and his chances to secure the Democratic nomination closed considerably. Sanders’ team also announced they were shrinking their staff as the primary calendar nears its end.
Until then, here’s a look back at some of the highlights of Sanders’ run:
Bernie Sanders’ First Campaign Announcement on Capitol Hill -- April 30, 2015
The Vermont senator was noticeably in a rush that day, almost uncomfortable or dismissive of the event. With his now infamous messy hair blowing in the wind and the far-from-thought-out shot for the cameras, it’s easy to see why many people were a little dismissive of the announcement, especially those unfamiliar with his significant social media presence.
Bernie Sanders’ Campaign Launch in Burlington, Vt. -- May 26, 2015
Bernie Sanders’ Rally in Los Angeles Featuring Sarah Silverman -- Aug. 10, 2015
Larry David/"Saturday Night Live" -- Oct. 17, 2015
The senator’s unbelievable doppelganger, comedian Larry David, solidified one fact: Sanders was now cool. David’s debut of his role on NBC’s "Saturday Night Live," delighted fans and the senator himself, who referenced the character and David’s impression from that point forward in almost a meta-comedy Sanders-doing-Sanders bit of comedy.
Feeling the Bern
OK, we’re cheating here. Dare we say a yuuuuuuggggge part of Sanders’ campaign existed outside his formal staff. His bid for the White House was supplemented by grassroots activists and superfans who brought color to his events. Homemade signs were a staple of his events, not to mention Bernie-beer, doughnuts, earrings and shirts.
Coin Flips at the Iowa Primary -- Feb. 1, 2016
Bernie Sanders Celebrates Win in New Hampshire -– Feb. 9, 2016
"Biggest political victory of my life, I haven't had a chance to read it," Sanders said.
The Vermont senator won his neighboring state by an astonishing 22 percent, more than either side had predicted. He celebrated by playing basketball with his grandkids before a victory rally in the state. Less than three weeks later, he would be trailing Clinton by 26 pledged delegates after losing Nevada and South Carolina.
A Bird Lands on Sanders' Podium in Portland, Ore. -- March 25, 2016
Yea, Portland literally put a bird on it. During a rally in the town in March, a small sparrow landed on the senator’s stage. He seemed to almost beckon it with a flick of his hand and then stood in happy disbelief as it landed right on his podium. “Birdie Sanders” broke the Internet that day and spawned subsequent cultish artwork. Sanders himself called it a hopeful sign for world peace, because ... again ... Portland.
Bernie Sanders Lights Up New York City With Washington Square Park Rally -- April 14, 2016
Clinton won a resounding and decisive victory in New York, beating Sanders by 16 percentage points and all but clinching the nomination. Still, with an eye-popping event in the city’s iconic Washington Square Park, Sanders reinforced the fact that young people flock to him. With over 27,000 people, according to the campaign, filling parking space and surrounding blocks, the Brooklyn-born Sanders had an undeniably memorable night.
His Campaign Today
Despite his overwhelming delegate deficit and mounting pressure from the Clinton campaign and some voters to concede and begin the process of unifying the Democratic Party, Sanders has instead pledged in recent days to fight on until the last vote is cast.
While he has scaled back his team, he has not yet scaled back his travel plans. The senator flew this week out to Oregon for a day of events, before heading back to Indiana to keep campaigning as the Tuesday primary approaches.