Ben Stein went after President Obama’s mental health during his attack on the Iran nuclear deal Friday. Stein was asked by Fox News host Ben Cavuto to respond to statements president Obama had made that some U.S. leaders opposed to the deal were making “common cause” with Iranian hardliners.

“I make of it that Mr. Obama is desperate. I’m not sure he is well-rested or in good mental health,” said Ben Stein. ” The idea of comparing loyal, patriotic Americans with mullahs and terrorists who want to destroy the United States, to destroy Israel, is incredible. It’s almost unbelievable.”