There are a total of 535 Members of Congress. 100 serve in the U.S. Senate and 435 serve in the U.S. House of Representatives.
You can’t necessarily change peoples’ behaviors or how “good” or “bad” they are, but you can communicate what it is that bothers you. Often there are things happening to them at home or out of wherever you know them from that can make them not the most pleasurable people to be around. Try to just be the bigger person, and if they decide not to, then they don’t deserve to be a friend.
They could get in a car crash, kill themselves or hurt some on else