Rep. Lofgren: Trump’s impeachment case is most serious yet

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Alex Witt is joined by Rep. Zoe Lofgren (D-CA), to discuss the House’s impeachment investigation. The congresswoman, who has worked on three impeachment cases, explains why she believes this one is the most serious yet. Plus, Lofgren asks Republicans in Congress: if they’re scared of backlash from the President, then ‘why are you here?’