- Julian Zelizer: Clinton and Sanders played out epic battle in Brooklyn, with each coming out of distinct, longstanding Democratic tradition
- He says Sanders needed to show he understood policy; Clinton needed to show heart, not just mind. She succeeded better than he
Julian Zelizer is a professor of history and public affairs at Princeton University and a New America fellow. He is the author of "Jimmy Carter" and "The Fierce Urgency of Now: Lyndon Johnson, Congress, and the Battle for the Great Society." The opinions expressed in this commentary are his.
Brooklyn, New York (CNN)Brooklyn was raucous Thursday night. The two Democratic presidential candidates went head to head for their New York debate in the Duggal Greenhouse in Brooklyn -- and the atmosphere was, to say the least, tense.