[somenameforme]

The real threat I think will not be in trying to trick people with fake videos, but instead deep flags: create fake videos showing awful things about the politician one wants to win, and then attribute the fakes to supporters of the guy you want to lose and make them look like animals.

Especially in coordination with a media campaign, it would be an effective way of undermining the opponent by making them look simultaneously grossly unethical and desperate. Even better if you can get the FBI involved to investigate whether the video was created directly by the opponent or "only" by his supporters. And anybody describing what actually happened could easily be straw manned into sounding like a nutter.

And the quality is already perfectly fine for this.