Trump has been blurting out semi-coherent word salads for quite some time now, particularly when he's clearly off-script. And to head off the "whatabout" chorus, I certainly acknowledge that Biden had his fair share of "senior moment" howlers, as well.

Democratic societies walk a fine line between seeking high levels of experience in older leaders and placing power in the hands of people with decaying mental faculties. Sometimes we end up on the wrong side of that line. I'm not sure if that's a fixable "bug" in democratic governance or an inevitable "feature."