Transcript for Bill Clinton Takes Aim at Bernie Sanders
We move on to the white house. "Your voice, your vote." All eyes on New Hampshire. We begin with the democrats. Bill Clinton taking aim at Bernie sanders for the first time. Bernie sanders up double digits. ABC's Cecilia Vega has the latest. Reporter: Overnight, bill Clinton taking on a new role in his wife's bid for the white house. Campaign attack dog. For her this isn't about grand theories of revolution. Reporter: The former president unleashing on his wife's rival, accusing some Bernie sanders' supporters making offensive comments online to Clinton's backers. Attack that are literally too profa profane. Bernie sanders denouncing the nastiness saying it has nothing to do with his campaign. We'll do anything we can. Reporter: With Hillary Clinton trailing in the polls here. The uphill battle to win this state now tougher than ever. I think if I can persuade granite staters to give me another look. I'll do better. I'll keep fighting until the last vote is cast. Reporter: The face-off is just a day away. Hold on, wait a second. Reporter: It was a different kind of face-off on "Snl." I'm so sick of 1% getting this preferential treatment. Reporter: Bernie sanders coming face to face with Larry David. Sounds like socialism to me. Democratic socialism. What's the difference? Huge difference. Huge? Reporter: In the. Midst of this heated race out here in New Hampshire, Hillary Clinton left the state, went to Flint, Michigan, where they're dealing with that water crisis. She's back here with a packed schedule. . Bernie sanders has a packed schedule. Bill and Chelsea out here as well. All right, Cecilia, thank you.
This transcript has been automatically generated and may not be 100% accurate.