Personally, I'm having a hard time with this presumed announcement from Trump that he'll be running in 24. Think about it, Hillary was supposed to win in 16 but they underestimated how popular Trump was and blew the rig job. So what did they do 4 years later in 20?? They cheated harder, and won.
Why in the world would Trump or anyone else expect a different outcome in 24? All they have to do is cheat harder again.
They needed to get clear and non refuteable evidence so that when the storm hits, there is no question. Plus, it helps if they didnt get in the way beause some would try to twist that into "see they cheated too, everybody cheats."
Also, they woke up at least a hundred million citizens to the rigging, who previously would have never dreamed it could happen.