2020 candidate Seth Moulton: ‘We have a constitutional duty’ to open impeachment inquiry

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Rep. Seth Moulton (D-MA), a 2020 presidential candidate, tells Alex Witt that it is Congress’ duty to “hold the executive accountable” – and he believes opening an impeachment inquiry against Donald Trump does just that. Plus, Moulton lays out his education plan that would provide scholarships to young Americans who commit to national services either through military or civilian programs.