The stunning momentum of the insurgent left hit a roadblock this week when democratic socialist Francesca Hong narrowly lost her primary race for Wisconsin governor to Milwaukee County Executive David Crowley, a moderate who garnered significant support from establishment Democrats.

“The collective power of that Democratic establishment in a state, where there is a Democratic governor and there is a real Democratic Party establishment machine, all of that power was required to eke out a 0.4 percent victory in the party’s own primary against a previously unknown candidate running as a Democratic socialist,” The Lever’s David Sirota tells The Intercept Briefing.

This week on the podcast, host Jessica Washington speaks with Sirota, founder and editor-in-chief of The Lever, about the primaries and how the left is building power within the Democratic Party.

There were bright spots for progressives on Tuesday night. In Minnesota, progressive Lt. Gov. Peggy Flanagan defeated AIPAC-backed Rep. Angie Craig, D-Minn., in the Senate primary race. Craig had previously voted for the Laken Riley Act, which requires the federal government to detain people for certain crimes, including shoplifting and burglary. Flanagan, by contrast, told supporters on election night: “We need to rip ICE apart and stop them from terrorizing our communities.”