If you knew about statements made by officials of a city dept that they would initiate violence against members of the community if Trump is impeached, what would you do?
Report it to other public servants as well as the individuals immediate supervisor. Gather as much evidence and witness testimony as possible. If their immediate supervisor and other local public servants take no corrective action, keep on going up the chain of command until I find someone who will do something about it.
Guess we better leave him in office then. Bow to fear.