PHILADELPHIA — Cities large and small were preparing for major demonstrations Saturday across the U.S. against President Donald Trump, as officials urge calm, National Guard troops mobilize and Trump attends a military parade in Washington to mark the Army’s 250th anniversary.

The movement marked the biggest single-day of anti-Trump protest of his second administration, per organizers.

The No Kings events are intended to present a peaceful but patriotic “split screen” to the Trump administration’s military parade and reject what they call the president’s overreach. Groups including the American Civil Liberties Union,