Schumer sent a letter to Barr on Thursday raising alarms over the attorney general's rhetoric during his appearance before the Judiciary Committee the previous day, including Barr's comments about a president's ability to end an investigation.

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Barr, speaking before the panel, said that if an investigation "is based on false allegations, the president does not have to sit there constitutionally and allow it to run its course."

"The president could terminate that proceeding and not have it be corrupt intent because he was being falsely accused," the attorney general told lawmakers.

Schumer said in his letter that of the "many disturbing things" Barr said during the hearing he was "particularly troubled" by his rhetoric on Trump's ability to meddle in investigations.