Famed Watergate reporter Carl Bernstein told CNN the Trump administration is trying to cover up its ties to Russia.

Said Bernstein: “There has been a real attempt to stonewall the press, to stonewall the FBI to stonewall congressional investigators. That’s what we know so far from people around the Trump campaign, where this goes and the seriousness of it we don’t know in terms of the ultimate disposition and what all the facts are.”

He added: “In this instance what we are finding out is that there appears to be some attempt somewhere to cover up what has occurred and we are trying to penetrate that cover up. Whether or not the cover up involves those closest to the President of the United States, independent operators, former campaign aides, all of that will be determined.”