I haven't watched Star Wars since Disney killed it years ago. Doesn't mean I hadn't heard of this happening.

My point is this. The Luke Skywalker thing is what they're doing in the entertainment industry and at a glance, he certainly looks real enough to suspend ones disbelief for the show. If this is what is being used in he public, one can argue that they have even more advanced stuff for their political machinations. Having a man stand behind a podium and just speak is certainly easier than an action scene as well. They don't need you to believe that this deepfake is Trump for a long time, just for the next 2 weeks and people are buying it.