LIVE STREAM: PBS/CNN Democratic Debate

I'm betting both candidates think Barack Obama knows what he's doing, without saying it three times, Rubio-style.

Tonight's debate airs at 9 Eastern / 6 Pacific, and will be simulcast on CNN and NPR and streamed live on NPR.org. It will be moderated by Gwen Ifill and Judy Woodruff.

Let us know what you're hearing and thinking. Debate Open Thread below...