Fred Trump, DJT's father. There is no record, or X-Rays of Trump's feet showing bone spurs that I've heard of, nor is there any report of the ailment causing him any problems before or after that diagnosis.
Why do you always pick the losing side of arguments?
Link: https://www.cnn.com/2018/12/26/politics/trump-bone-spurs-vietnam-war/index.html