Just before the press conference was called, Justice Department special counsel Robert Hur released what should have been welcome news for the Biden administration: a 345-page report concluding that the president should face no criminal charges over his improper storage of top-secret government documents and sharing of top-secret information with a ghost writer who held no security clearance. Hur’s report, however, also found that Biden displayed significant memory lapses during the investigation, including an inability to state when he had served as vice president or the year in which his son died. Biden, Hur concluded, is an “elderly man with a poor memory.”

Were it not for Biden’s ill-advised press conference, the main topic of discussion might have been the legal implications of Hur’s report. Biden and his supporters could have claimed vindication, while his opponents might have carped about prosecutorial double standards in light of Donald Trump’s federal indictment for broadly similar alleged offenses. But after Biden left the podium, the desperation was like blood in the water for the beltway sharks, who closed in to feed on a public relations catastrophe—a “nightmare,” according to an anonymous Democratic congressman interviewed by NBC News.

Doubts about Biden’s mental competency can no longer be ignored in any serious analysis of American electoral politics.