I have no doubt that some prosecutions in the US have a major political component. Here is how it works,if your outspoken politics offends the wrong prosecutor,they can go after you in ways you can not imagine.
If you happen to get a judge who does not smell a rat in this,you are at their mercy. Even with a sympathetic judge,you can be forced into expensive and unfair plea bargains because the cost of fighting the government in court will be your life savings.
Look at the whole Trump-Biden mess and tell me there is not a world of bias infecting our system.
