I was both until Congresscritters started coming out against him after the debate. I’m willing to accept that seeing him have a bad day - even a really fucking bad one - is not necessarily an indictment of his fitness to run a vigorous campaign, but I knew it was over once sitting Congressmembers were asking him publicly to step down. That’s… that’s lethal. Regardless of whether or not he’s fit to run a campaign.
I think it’s not impossible for him to win (though I was in full panic mode when Trump had an assassination attempt and I thought it might be a Dem behind the gun), but IF he does win, it will be wholly in spite of him being the candidate, and it will be an uphill fucking battle the whole way. He no longer advantages the Dem ticket - he’s a handicap.