Biden is a threat to Trump

We can discount that +8 Morning Consult poll which seems to have been loaded up with Democrat voters.
But Biden could have two big things going for him.
The first is battle fatigue. Not on the part of Trump. He will still campaign like a champion. But he has been so relentlessly attacked - I've never seen anything like it - that many of his suporters may throw in the towel.

The second is that Biden, unless he is a complete fool, will put on the mask of the peaceful moderate. He will campaign on bringing the country together with policy sops to both sides of the fence
But first he's got to avoid gaffes and get the gig from a radicalised party and then he's got to go 15 rounds with Donald "the crusher" Trump.