Why Ex–Sanders Supporters Are Backing Warren

Updated on September 18 at 3:10 p.m. ET

In 2016, Bernie Sanders described the Working Families Party (WFP), a grassroots progressive organization, as “the closest thing there is” to his “vision of democratic socialism.” The group endorsed him in his primary race against Hillary Clinton, and it’s grown more powerful in the past three years, as it has sought to build a multiracial populist movement nationwide. But this time around, with Sanders taking another shot for the White House, the group is throwing its weight behind someone else: Elizabeth Warren. The group’s surprising decision could be an early indicator of how progressives—including those who backed Sanders in the past—are planning to organize and vote next year.

“The political conditions are different” in this