LOLOL
Biden has no role in "approving" Harris taking the nomination besides an endorsement. Biden himself wasn't even the nominee yet. And beyond that, the not yet nominee does not have the power to approve someone else taking the nomination.
Just saw substitute Pence on TV and he had ppl with signs that said swamp the vote which is super great given before they were going to drain the swamp. Apparently now they know they're the swamp.