Cities large and small are preparing for major demonstrations across the U.S. against President Donald Trump. That's happening Saturday as officials urge calm, National Guard troops mobilize and Trump attends a military parade in Washington to mark the Army’s 250th anniversary. A flagship “No Kings” march and rally are planned in Philadelphia. The demonstrations are gaining additional fuel from protests flaring up over federal immigration enforcement raids. Governors and city officials are vowing to protect the right to protest and to show no tolerance for violence. Republican governors in Virginia, Texas and Missouri are mobilizing National Guard troops. Organizers say Philadelphia could see a crowd approaching 100,000 people.