Since Joe Biden has left the White House, we have seen a steady stream of politicians and media pundits who had previously denied Biden’s mental health decline—at best—come to the realization that they had been duped, and at worst, now have to answer for a cover-up. Of course, any sane person who had seen Biden speak over the course of his presidency, and certainly over the last year and a half of it, could tell that the man was not the same mentally. There was a reason he never spoke to the press. There was a reason he was done working every day by 6 p.m. There was a reason he looked horrible during his debate with Donald Trump. And obviously, this wasn’t because he had a bad night. It was because he was having a bad four years.