Former Secretary of State John Kerry joked that he wanted to see President Trump’s “girth certificate,” a reference to the president’s weight, during a speech at the annual Alfalfa Club dinner in Washington, D.C.

“Despite the pressure he’s under, the White House physician says President Trump is in great shape — a trim 239 pounds. Personally, I just won’t believe him until he produces his long-form girth certificate,” Kerry said on Saturday.