Very weird that I am so old and have literally never heard this mentioned in a TV show or book or movie or anything.
In four out of five states, if you go to prison, you are literally paying for the time you spend there.
As you can guess, this results in crippling debt as soon as you're released.
The county gets back a fraction of what they hold over your head the rest of your life until you commit suicide(or die naturally and peacefully with the sword of damocles hanging over your head).
$20-$80 a day according to Rutgers.
Counties apparently sue people and employ wage garnishment to get back the money that majority of people obviously cannot pay back.
He's had some policies I agree with, that move us towards a less police state level. I admit, I haven't followed him super closely, he's less interesting than things have been lately, but at least the federal decriminalization of marijuana and pardons (I know they were effectively useless, didn't really do anything - we can get into exactly why) show he's at least trying to do what constituents want, which is a far cry more than a lot of other politicians.
Can he, should he, do more? Yeah. But credit where it's due, he seems like he's trying to steer two giant ships - his own past biases, and the United States political climate. Both of those are slow and hard to do, so anything moving in that direction should be celebrated.