Trump sued over police violence outside White House

U.S. civil rights groups on Thursday filed a case suing President Donald Trump after security forces fired pepper balls and smoke bombs to clear peaceful demonstrators outside the White House. 

Law enforcement officers forced protestors back before Trump walked to a nearby church for a photo op on Monday, amid nationwide protests over police brutality that have increasingly divided the country. 

The American Civil Liberties Union and other groups accused the president and top officials of violating the constitutional rights of Black Lives Matters campaigners and individual protestors.