Former Secretary of State John Kerry told Fox News host Ed Henry Thursday that President Donald Trump’s accusation that he violated the Logan Act when speaking with Iranian officials is “once again, another presidential lie.”

“That is, once again, another presidential lie, a complete effort by the president to distort reality because if he knew anything about the law, he’d know I didn’t negotiate with anybody. I did what every Senator and secretaries of state in history have done, which is continue to go to conferences abroad or have meetings in order to be well-informed,” Kerry said.

He continued, “We engaged no negotiation, but what he ought to do is focus on somebody called Rudy Giuliani who’s been out there engaged in very direct negotiations in an effort to try to do a subterfuge foreign policy. So, let’s get real here, which is something the President doesn’t like to do.”

President Trump earlier tweeted Thursday that both Kerry and Sen. Chris Murphy, D-CT, had “violated the Logan Act with respect to Iran.” Further, he said, “If a Republican did what they did, there would be very serious ramifications.”