Trump can do nothing until he is President.
This is a terrible take. What happens if Trump doesn't get elected President in 2024? Better still, how does he get elected in 2024 if hundreds of his supporters were held by the feds as political prisoners and he did nothing to support their plight and legal troubles for four whole years?
Does he just act dumb to the whole "political prisoners" thing and let things play out while families are destroyed and people spend years being mistreated in prison on tresspassing charges?
Trump can rally tens of thousands of supporters to a stadium event with just a few days' notice. He can't pardon charges or direct the DOJ to drop an investigation, but he can provide a voice to the effort, raise money and awareness, and give defendants hope that they so desperately need. He presumably has connections with the best legal minds the right has to offer and could pick up the phone to get their insight and assistance. He is also, presumably, a billionaire ... and sitting on a war chest of donations in a PAC that could go to messaging or maybe even hiring lawyers so these average Joes wouldn't be financially ruined by federal prosecutors over trespassing charges.