Another poll, USA Today/Suffolk has his approval rating at 40%. He actually did worse previously (38%), but the voter screen on this won had 2020 Biden voters outnumbering 2020 Trump voters by 5 points, whereas previously they had Biden voters outnumbering Trump voters by only 1. So this poll is at least the worst.
Biden’s numbers are WORSE than Nixon’s were when Nixon got on the Helicopter and left the White House for the last time.