"Yet he's the President of the United States, which says it all, and what does it say about his past challengers.
Perhaps you do better questioning your own intellect, you may find, as evident from your comment, that you aren't much of a thinker. Also ask yourself, when will you become the most powerful person on earth? Whatever you wish to say about the President, his intellect is certainly not in question. Any intelligent and wise person should know better than to underestimate their opponent, but I suppose not many have ever accused you either--intelligent or wise.