As more people go to jail I’m thinking they must really have something...
Ha ha, yeah sure. You should apply some critical thought, and I'll help you along.
A. Investigate every and all things, because you're butt-hurt. Make shit up if you have to, which they've done plenty.
B. Look deep enough you'll find illegal activities by most everyone with a brain.
C. They discovered Cohen and Manafort broke the law unrelated to Trump, but hey, something is better than nothing to "justify" the abundance of money and time spent to ease butt pain. Meanwhile they don't hold Democrats to the same standards despite they doing much worse, or rather, they're the only guilty party to meet their accusations.
The Democrats and their deep state (e.g. FBI) are counting on people to be dumb as fuck. They're doing a nice job on many.