There have been, at last count, like 40,000 + of them. So which was the biggest? The dumbest? I think the biggest lie was the " I'll build a wall lie, and Mexico will paying for it." Mainly because it was his campaign's rallying lie, so many of the deplorables bought it, and then he failed miserably. I think his dumbest lie was when he said he spoke to the King of Norway about raking the forest floor. And then the King said... what?? I've never spoken to him. So stupid and unnecessary.