yeah it's just a political maneuver to seem like they're doing something last minute.
in hindsight i think when biden dropped out, and kamala nominated walz shortly after, much of the momentum they had then was because young people thought it was possible they would break with biden on israel somehow. when it became clear that wasnt the case (by the DNC imo) they probably started to see abysmal internal polling among 18-35s again
her election betting average is worse than it's ever been, it's +13 Annoying Orange right now.

i dont think people will fall for it though