Democrats to debate against impeachment, Syria backdrop

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12 candidates will take the stage for the biggest 2020 Democratic Presidential debate. But the event is particularly important for two candidates. Joe Biden is expected to face questions about his son Hunter’s foreign business dealings since the impeachment inquiry has started, and Bernie Sanders is back following a heart attack earlier this month. MSNBC National Political Correspondent Steve Kornacki, NBC News Correspondent Mike Memoli and Politico Senior Writer Marc Caputo join Katy Tur to discuss how this will all play out on stage.