Well, Trump wants to jail federal employees who were hired to investigate his campaign's ties to Russia, for crime of investigating him, so we are at that level of insanity. Republicans tried to say Hillary Clinton was a horrible person because she once represented a convicted child molester. The fact that she was assigned the case as a public defender, and the court denied her request to be excused from the case, was completely ignored. Hillary was just the worst person ever for being this guy's lawyer.
There's a line in the movie The Big Chill, wherein Mary Kay Place is asked why she had stopped being a public defender, and was now a corporate lawyer and her response was "I didn't know my clients would all be so, [pause] guilty". Most of the people charged with crimes, are guilty. The guilty FAR outnumber those wrongfully accused. One of the best and smartest lawyers I ever worked for said that when he was a young lawyer, he took every client that walked in the door, but quickly decided criminal law was not for him. He said "You walk down the street and every crook, drug dealer and rapist knows your name. Those aren't the kind of people I want to do business with or for.".
If you're a criminal lawyer, your clients are criminals, and nearly all of them are guilty. Prosecutors don't file cases they don't think they can win. It's a given.