The folks who are "troubled" by Trump's tweets and gruff statements would have been "severely troubled" by Harry Truman's conduct. Truman makes Trump look like a suave gentleman. Truman was known, and publicly attacked, for his profanity-laced outbursts, for his lack of civility, and for his explosive temper.
Truman was such a terrible president that he had several of his vetoes overridden by Congress. By early 1952, it was clear that he would get crushed if he ran for reelection, and so he opted not to run. As it was, he had barely beaten Thomas Dewey in 1948 in what should have been a runaway victory given that we were flush from winning WW II and that the economy was starting to rebound strongly.
