Under an unusual arrangement, Paul Manafort's attorney has kept Donald Trump informed about the former campaign chairman's meetings with prosecutors investigating Russian meddling in the 2016 U.S. election and, according to Trump's lawyer, Manafort has not said anything damaging about the president.

Rudy Giuliani, who represents Trump in the Russia probe, told Reuters that he had spoken with Manafort's lawyer, Kevin Downing, as recently as last week. Manafort pleaded guilty on Sept. 14 to violating foreign lobbying laws and trying to obstruct justice. He was convicted at trial in another case in August.

Giuliani said the conversations were occurring under a so-called joint defense agreement, which allows lawyers who represent different clients to exchange information without violating attorney-client privilege.