I just don’t see it. Harris doesn’t even seem to be popular within the party, or by progressives.
It’s very possible that she has been playing dead fish on purpose to let Biden have the spotlight, as is the role of VP. Maybe she can take the gloves off and rise to the challenge. Maybe.
But I think it’s far more likely she serves as a bland, dry candidate that gets completely steamrolled by theatric behemoth that is the Right’s propaganda entertainment machine. Who, by the way, will have ample ammo on her for being a last second replacement, AND easily reclaim the misogynistic and racist votes that they may have lost who weren’t MAGA zealots.