By Michelle Goldberg

It’s no secret that many left-wing activist groups and nonprofits, roiled by the reckonings over sexual harassment and racial justice of the past few years, have become internally dysfunctional.

In June the Intercept’s Ryan Grim wrote about the toll that staff revolts and ideologically inflected psychodramas were taking on the work: “It’s hard to find a Washington-based progressive organization that hasn’t been in tumult, or isn’t currently in tumult.” Privately, I’ve heard countless people on the professional left — especially those over, say, 35 — bemoan the irrational demands and manipulative dogmatism of some younger colleagues. But with a few exceptions, like the brave reproductive justice leader Loretta Ross, most don’t want to go on the record. Not surprisingly, many of Grim’s sources in the nonprofit world were anonymous.

That’s why the decision by Maurice Mitchell, the national director of the progressive Working Families Party, to speak out about the left’s self-sabotaging impulse is so significant.