WASHINGTON -- A Maryland Dem is trying to change House rules so that the chamber observes a moment of silence for every shooting victim in America, not just mass shootings and terror attacks. The House has recently observed moments of silence for victims of the October mass shooting in Las Vegas, the Halloween bike path terror attack in Manhattan, and the November mass shooting at a church in Sutherland Springs, Texas. Freshman Rep. Jamie Raskin (D-Md.) introduced H.R. 666 this week "to observe a 60-second moment of silence in the House for those killed by gun violence in the United...