He certainly would face a substantial amount of competition on the racist front. There have been many frightfully racist U.S. presidents in American history. Here are the 11 most racist U.S. presidents of all time.
Regardless of what you think about Obama, the impeachment discussion, such as it is, has further underscored that the Republicans are not ready to govern, and in fact may not even be interested in doing that.
Whether filtered by an archivist, historian, editor, screenwriter, actor or director, perspective on the life of another person is ultimately subjective - and there's no group of people more highly susceptible to the subjective than the presidents.