He wants it to describe the true version of events, where all five companies of heroic yellow neckerchief-wearing cavalrymen found themselves surrounded by thousands of mounted Indians, galloping in contra-rotating circles, and Custer was the last one to die.
I remember reading that while Custer's body wasn't mutilated to the same extent as some in his command, women pierced his eardrums with knitting needles so that he might listen more carefully in the next life. Now I'm not suggesting that such a procedure would ever have an effect on Trump, but is there really anything to lose..?