Sen. Elizabeth Warren questioned the legitimacy of Supreme Court Chief Justice John Roberts presiding over President Trump’s Senate impeachment trial.

Roberts read the Massachusetts Democrat’s question, which asked, “At a time when large majorities of Americans have lost faith in government, does the fact that the chief justice is presiding over an impeachment trial In which Republican senators have thus far refused to allow witnesses or evidence contribute to the loss of legitimacy of the chief justice, the Supreme Court, and the Constitution?”