Amy Walter and Domenico Montenaro on 2020 Democrats' 'volatility,' impeachment politics

Amy Walter of the Cook Political Report and Domenico Montenaro of NPR join Yamiche Alcindor to discuss the latest political news, including shifting dynamics in the 2020 Democratic presidential primaries, how congressional Democrats and Republicans view the facts of the impeachment investigation differently, political pressure on moderates and how impeachment could affect the 2020 race.

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