Bullshit.
She's retired. There is no reason for him to talk to her at all.
He has major crises to deal with. We're on the brink of a regional war in the middle-east. Ukraine. Etc.
She's got nothing to do, so she''s going around playing adolescent mean-girls games to get everyone to think she's the real power that forced him out of the race (this is total bullshit. he decided on his own, due to his age and health, but narcissist Nancy gotta try to steal some thunder)
Biden is right to completely ignore that useless piece of shit.