Odds of Hanging On
If you're able to become a judge, your chances of being re-elected and remaining one are good. There's not a lot of turnover in this position, especially if you're a federal judge and are appointed during good behavior. Those positions are for life, unless you take the law literally into your own hands (or a bribe).
Plus, if anyone comes at you and tries to fire you, you can just have their butt thrown in jail. Better be quick on that gavel, though.