It's not so much that he can't spell. I sometimes misspell words, and I'm a college grad with a minor in English. But I can use a dictionary, a spell-checker, and google a word for the correct spelling. The real problem is that he just doesn't care and can't be bothered to make that little bit of effort to correct his misspellings. It's just too much trouble for him to care about the quality of what he puts out. He doen't care that his laziness and sloppiness reflects poorly on the office of the presidency.