'Deep fakes' are right up there with 'AI is going to turn against us', or 'software engineers are going to be replaced by AI' on my bs list.
The real problem we face with elections is much less exciting to talk about. It's a few people going around making reasonable and factually correct comments, and manipulating upvote/downvote counts with bots to drive-home the belief that one view is popular, and another is extremely unpopular.