'I'm not concerned at all': President Trump insists he has no worries about Mueller grilling Jeff Sessions
Donald Trump speaks from the Oval Office (screen grab)

President Donald Trump told reporters on Tuesday that he was "not concerned at all" about the news that Attorney General Jeff Sessions had been questioned by Special Counsel Robert Mueller's investigation into Russia's interference in the 2016 U.S. election.

"No, I'm not concerned at all," Trump said during a brief appearance in the Oval Office.

Trump also insisted that FBI Director Christopher Wray did not threaten to resign after the president pressured him to fire Deputy Director Andrew McCabe, a claim contrary to reports on Tuesday.

Watch the video below.