Andrew Johnson alcoholism debate
The Andrew Johnson alcoholism debate is the dispute, originally conducted amongst the general public, and now typically a question for historians, about whether or not Andrew Johnson, the 17th president of the United States, drank to excess. There is no question that Andrew Johnson consumed alcohol (as would have been typical for any Tennessean of his era and station).
Source: Wikipedia — Andrew Johnson alcoholism debate (CC BY-SA 4.0)