Asked about Obama’s comments, Trump first told a pool of reporters at the White House that administration officials “had a great weekend” during a working trip to Camp David.

“We did a lot of terrific meetings, tremendous progress is being made on many fronts, including coming up with a cure for this horrible plague that has beset our country,” he said.

When pressed further, Trump added: “Look, he was an incompetent president. That’s all I can say. Grossly incompetent.”