The top Democrat on the Senate Intelligence Committee said President Trump’s actions are not those of someone who is innocent, following a report that Trump attempted to fire special counsel Robert Mueller.

“These are not the actions of an individual who doesn't have something to hide,” Sen. Mark Warner, D-Va., told CNN host Jake Tapper on Friday. “The president keeps saying there's no there there. Well, if there's no there there, let these investigations, including our bipartisan Senate Intelligence investigation, finish our job.”

Warner said this behavior was a “pattern,” and noted that former FBI Director James Comey told Congress that Trump had asked him if there was a way of “letting Flynn go.” The comment was a reference to former national security adviser Michael Flynn, who was ultimately fired due to disingenuous statements about his communications with Russian officials.

According to a New York Times report, which has since been confirmed by several other outlets, White House counsel Donald McGahn warned of the dire consequences of Trump's order to fire Mueller in June 2017 and threatened to quit rather than inform the Justice Department.

After McGhan's threat to remove himself Trump backed off ordering Mueller's ouster.

Mueller is leading a team that is investigating whether the Trump campaign colluded with the Kremlin during the 2016 election. Trump has maintained on multiple occasions that no collusion occurred and has repeatedly called the inquiry a "witch hunt."