Sen. Lindsey Graham (R-SC) on Sunday strongly condemned Crown Prince Mohammed bin Salman over the killing of Jamal Khashoggi, telling Fox News that he’s “done” with Salman.

“I find it impossible to believe that the crown prince was not involved, so go after him and his inner circle,” he told Fox News. “Save the alliance. I don’t mind military sales but I cannot do business with the current leadership. MBS — he’s done to me. … I never felt more used in my life. I introduced him when he was in Washington.”

Saudi officials claimed over the weekend that Washington Post journalist Jamal Khashoggi was killed during a fist fight at the Saudi consulate in Istanbul earlier this month, an admission that comes in contrast with officials’ blanket denials in recent weeks.

Graham is just one of many Republican and Democratic lawmakers who have called for sanctions against the kingdom over Khashoggi’s disappearance.