> Everything could change in a presidential election

Not really, not immediately, IMO. And if they could, that would be a problem in itself.

It will take some time to undo what has been done and will still be done in the current term. To change things back quickly would take both someone despotic on “the other side” willing to force things through with executive orders, and have the general support needed to weather the negative PR associated with that, and (perhaps more importantly) insufficient kick-back getting those orders quickly reverted or watered down. Even if they elect someone, and a team around them, who is willing and able to work that way, the changes made recently include changes that will make them harder to roll back on. And even if things do get magically fixed in the next term, that would just prove how quickly they could be unfixed again four years later.