Stage set for second round of Democratic presidential debates

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The lineup has been set for the next round of Democratic presidential debates. Bernie Sanders and Elizabeth Warren finally facing off as Joe Biden and Kamala Harris get their rematch. MSNBC National Political Correspondent Steve Kornacki, Democratic strategist and former advisor to Clinton’s 2016 campaign Antjuan Seawright and Washington Post Political Reporter Eugene Scott join Craig Melvin to break down both nights.