PENN, CLINTON, UNIONS. According to The LA Times, there actually is continuing, albeit quiet, pressure from the unions for Hillary Clinton to either fire Mark Penn or force him to quit his union-busting PR firm. There are hints, too, that this will bust into the open at the AFL-CIO’s Democratic debate tonight, which will be broadcast live on MSNBC, and moderated by Keith Olbermann.

–Ezra Klein

Ezra Klein is a former Prospect writer and current editor-in-chief at Vox. His work has appeared in the LA Times, The Guardian, The Washington Monthly, The New Republic, Slate, and The Columbia Journalism Review. He’s been a commentator on MSNBC, CNN, NPR, and more.