2020 Campaign

From frontrunner to withdrawal in six weeks — the 2020 campaign, its peak, and its end.

Launch

Sanders announced his second presidential campaign on February 19, 2019. The campaign’s slogan — “Not me. Us.” — framed the effort as a collective movement rather than a candidacy.

The frontrunner months

Sanders began 2020 as a frontrunner. He effectively tied for first in the Iowa caucuses (winning the popular vote there under the caucuses’ reporting rules), won the New Hampshire primary, and won the Nevada caucuses decisively — after which commentators widely described him as the candidate to beat.

In October 2019, Sanders had suffered a heart attack while campaigning in Las Vegas, undergoing stent surgery and briefly suspending in-person campaigning. He disclosed the heart attack publicly after the hospitalization; his doctors later released letters describing him as fit to serve, which the campaign published.

The turn

After Joe Biden’s decisive win in the South Carolina primary on February 29, 2020, several rival candidates withdrew and endorsed Biden. Biden then won the bulk of the Super Tuesday states on March 3. Sanders’s path to the nomination narrowed rapidly.

Withdrawal and endorsement

Sanders suspended his campaign on April 8, 2020, in a livestreamed address, saying: “I cannot in good conscience continue to mount a campaign that cannot win and which would interfere with the important work required of all of us in this difficult hour.” On April 13, 2020, he endorsed Biden in a joint livestream, telling him: “We need you in the White House.”

The results

Final tabulations of the 2020 Democratic primaries credit Sanders with about 8,466,161 votes and 1,007 delegates — a substantial bloc that gave his supporters influence over the party’s 2020 platform deliberations.

Source notes

Dates, vote figures, and the medical episode are drawn from contemporaneous reputable reporting and the reference tabulations cited on the sources page. Quotations are cited with venue and date on the sayings page.

Factual baseline: September 2026.