I don't want to get my hopes up, because we don't know shit about fuck, but this fits my theory of what is happening in the election: Undecideds were generally uncomfortable with Trump, but are grumpsy about the economy and weren't sold on Harris (but also hadn't ruled her out the way a bunch of indies just could not bring themselves to vote for Clinton). They remained Trump curious because of rosey memories of his economy, and his low grade flood the zone with shit created white noise that allowed indies to start living with the idea of another Trump term (I'm not sure if people really remember, but Trump got relatively quiet towards the end of the 2016 campaign, which really amplified the Comey memo and created the impression Trump could be just a buffonish but normal republican.) It meant late deciders who were trying to stomach Clinton in 2016 the incentive they needed to YOLO into Trump. I know there are people on this board who qualified for that.
The last two weeks have absolutely shattered that status qou, with Trump storming around the country as a facist and giving late breakers the incentive they need to YOLO into Harris.