In 2019, the WFP endorsed Elizabeth Warren in her campaign for president of the United States. Warren won the endorsement with 60.91% of the vote, compared with 35.82% for runner-up Bernie Sanders. The WFP received some criticism for not releasing the individual vote tallies between the party leadership and membership base, each of which accounts for 50% of the vote. In the 2016 primary the WFP had endorsed Sanders, one of Warren's opponents in the 2020 primary. After Warren dropped out of the race, the WFP endorsed Sanders.