Jonathan Last: The president of the United States gave a speech yesterday before a group of McDonald’s corporate workers and franchise owners. I’m going to quote a few sections of his remarks at great length, because if you have not listened to Trump speaking recently, the decline in his cognitive abilities is a bit shocking.”“The point of this exercise is not to clown on Trump, but to give everyone a baseline understanding of where he is, with the mentals, as we try to understand how he will respond to increasing pressures in the coming months…”“Bottom line: This is a man in noticeable mental decline.”