I don't think that's going to move the needle much come next year. I think it boils down to what I'm pretty sure I posted months ago on this thread. Biden's age and the economy. Yes, I get the Trump is also old. And yes, I get that unemployment is still really low and rate of inflation has been reduced. I don't think it matters. Because to the average America, Biden "Seems" significantly older than Trump (the whole "Biden has dementia, doesn't know where he is" narratives have been effective) and your average America doesn't pay attention to data, they just know everything is really fucking expensive and even if employed their purchasing power is way down.
Let me be clear I don't blame Biden for inflation. It was inevitable post Covid. But he's the President so he gets the blame from Joe Public. That's how it's always been.
Obviously Biden hasn't really started campaigning and can combat these narratives (and an active campaign will highlight that Trump is old AF as well) but these are legitimate concerns that, apparently, to date, the Dem establishment has taken lightly.
The Dems should have been grooming someone as a potential alternative in 24 (or obvious successor) and they haven't done that. I think a younger likeable moderate candidate would wipe the floor with Trump. I also think a younger likeable moderate candidate that the GOP would actually support (which will never be the case in the current "MAGA" environment) could wipe the floor with Biden. But instead, we're going to watch 2 incredibly old candidates battle it out in the most consequential election we've had.