Sign up for the daily Inside Washington email for exclusive US coverage and analysis sent to your inbox Get our free Inside Washington email Get our free Inside Washington email Please enter a valid email address Please enter a valid email address SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy Thanks for signing up to theInside Washington email {{ #verifyErrors }} {{ message }} {{ /verifyErrors }} {{ ^verifyErrors }} Something went wrong. President Joe Biden dropped out of the 2024 race after a fumbled debate performance that had voters questioning his mental acuity. But the explanations caused one Trump biographer to believe the GOP nominee knows full well that he is losing his mental footing. Take a Wisconsin rally last month, when Trump jumped from bacon to wind turbines in a single minute.
