No, Biden is already under the bus. EVERYTHING negative (that they can't pretend was Trump's fault) will be Biden's fault, and Kamala, the newly anointed one, will be a clean slate, strong on crime and the border and sound fiscal policies right up until elected.
She'll pretend to be the same moderate Biden pretended to be before he was elected and swung hard left.
So, Hillary back in as Secretary of State?