A huge and peaceful crowed turned out for the "No Kings" rally, shutting down much of the Loop as part of a nationwide protest movement to denounce the Trump administration.

Willie Mathews Jr., of south suburban Matteson, was spotted wearing a T-shirt and backpack with the word police on it around 5 p.m. in the 200 block of South Michigan Avenue. Police asked him for his credentials before arresting him and finding a loaded gun, police said.

PHILADELPHIA (AP) — Masses of demonstrators packed into streets, parks and plazas across the United States on Saturday to protest President Donald Trump, marching through downtowns and small towns, blaring anti-authoritarian chants mixed with support for protecting democracy and immigrant rights.