It's natural to want to compare this campaign to 2020 and 2016, but Dobbs (which is underplayed a lot when discussing politics) is a big differentiator... anyone who claims to know how big or little of a difference that makes in this election is lying. We need to see it.
As far as his campaign is concerned, he's run a terrible campaign and Harris, given what she was left with, has made the most of her opportunities. And he's raised far less money than Harris (and Biden), suggesting there's a real difference in enthusiasm this time. If he wins, it's mostly going to be on an anti-incumbency environment versus anything he's proactively doing to win.... his campaign is that bad.