If Donald Trump’s theory of “bad genes” were to prevail, it would wipe out American sports greatness wholesale. There go all those DNA-flawed children of immigrants with potential murder in their blood, including a large swath of the Olympic team, a significant portion of the NBA and NFL, and Joe DiMaggio. Trump’s contention that he is a natural athlete who could have been elite is just another line he has been running for decades to boost his borrowing. Some people steal valor; Trump steals an affectation of vigor — when in fact he is evidently unfamiliar with the real thing, much less what it’s derived from. Read more