WATCH As MSNBC Reporter Tips Off Hillary Spokesman About Next Question

Kristen Welker, in the spin room right after the Dem Debate last night in Michigan, doesn't know she's on live television. She's standing with Clinton Communications Director Jen Palmeiri, waiting for the go ahead from  MSNBC Host Ari Melber
They toss it to her. Welker doesn't hear it, and not knowing the mic is on, Welker tells Palmeiri that the next question will be about Flint.