U.S. Senate Democratic Minority Leader Chuck Schumer and other Democratic senators commented following the swearing-in of senators and Chief Justice John Roberts in the impeachment trial of President Donald Trump.

Schumer spoke about the need for witnesses to be called and documents released during the trial and that a recent interview by Lev Parnas underscores the need for both.

He also said when Chief Justice John Roberts entered the Senate chamber for the swearing-in, the "gravity" of the situation was felt and he saw colleagues on both sides of the aisle "gulp".

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