Calling for a return to the
fifty-state strategy,
Howard Dean, a former
Governor of Vermont who served as chairman of the DNC from 2005 to 2009, announced his candidacy on November 10. Citing the potential for a divisive race, Dean withdrew himself from consideration on December 2.
Keith Ellison,
U.S. Representative for
Minnesota's 5th congressional district, announced his candidacy on November 14. That day,
South Carolina Democratic Party chairman
Jaime Harrison also declared himself a candidate.
New Hampshire Democratic Party chairman
Raymond Buckley declared his candidacy on November 29. After meeting with DNC members, Ellison announced on December 7 that he would resign his seat in the House of Representatives if elected DNC chair, so that he could focus his full attention on the job. One week later,
Labor Secretary Tom Perez announced his candidacy.
South Bend, Indiana Mayor
Pete Buttigieg announced his candidacy on January 5, 2017. Another possible candidate was Representative
Ruben Gallego of
Arizona. Former
California Assembly Speaker John Pérez contemplated a run, but first decided instead to run for Congress, then withdrew from that for health reasons. Former
Michigan Governor Jennifer Granholm, once considered a potential candidate, took herself out of consideration. but decided not to run.
Ilyse Hogue, the President of
NARAL Pro-Choice America, and Representative
Steve Israel of
New York announced that they would not run. DNC Vice-chair
R. T. Rybak considered a run, then chose to endorse Ellison when the latter announced his candidacy. Senators
Bernie Sanders,
Elizabeth Warren, Representative
John Lewis, former Senate Minority Leader
Harry Reid, and Senate Minority Leader
Chuck Schumer publicly supported Representative
Keith Ellison of
Minnesota, the co-chairman of the
Congressional Progressive Caucus.
MoveOn.org, led by
Ilya Sheyman, has also expressed support for Ellison, •
Tom Perez of
Maryland,
United States Secretary of Labor from 2013 to 2017 •
Samuel Ronan of
Ohio, activist and
Air Force veteran – withdrew February 25, 2017, and endorsed Ellison. •
Raymond Buckley of
New Hampshire, chairman of the
New Hampshire Democratic Party since 2007, Buckley withdrew on February 18, 2017, and endorsed Ellison •
Pete Buttigieg of
Indiana, Mayor of
South Bend, Indiana (2012–2020). Buttigieg dropped out on the day of the election, February 25, 2017, and did not endorse another candidate. •
Howard Dean,
Governor of Vermont (1991–2003); chairman of the DNC (2005–2009). Dean withdrew on December 2, 2016, and endorsed Buttigieg on February 22, 2017. After Buttigieg withdrew, Dean endorsed Ellison on February 25, 2017. •
Jaime Harrison of
South Carolina, chairman of the
South Carolina Democratic Party since 2013. Harrison withdrew on February 23, 2017, and endorsed Perez.
Declined •
Xavier Becerra,
Attorney General of California (2017–2021);
U.S. Representative from
California (1993–2017) •
Ruben Gallego,
U.S. Representative from
Arizona since 2015 •
Martin O'Malley,
Governor of Maryland (2007–2015);
candidate for
President in 2016 ==Forums and debates==