Senator Professor Warren continues to play error-free baseball in this here presidential campaign. Not only does she schedule a certified Big Speech in Washington Square Park in New York on Monday night to talk about the contributions of women to the labor movement not far from the site of the Triangle Shirtwaist fire, but also, in the afternoon, she scoops an important endorsement across town. From The New York Times:

The party endorsed Senator Bernie Sanders of Vermont during the last presidential cycle, at which time he described Working Families as “the closest thing” to “my vision of democratic socialism.” The group’s endorsement of Ms. Warren on Monday, one of the few by a prominent progressive organization this early in the primary, is sure to turn heads among left-leaning Democrats who are desperate to defeat the current front-runner, Mr. Biden, in a primary election where their party’s ideological future is at stake.

Read the rest of Charlie Pierce’s piece at Esquire.