From nojo at Stinque:
And yet this fascinates us. This lie, this least consequential of all his lies. Nobody will die because of this lie, unlike his others. No harm will be caused. Nothing will come of it at all.
Nor would this lie have made any difference to his reputation, not to a man who repeatedly insists his election was historic, his presidency second only to Lincoln’s. A world-historical figure need not worry about the reaction to a speech to a crowd of boys.
And yet Donald Trump felt deeply compelled to lie about it anyway. He could not let it go.