March for Our Lives March 24, 2018 7:33 pm Hundreds of Thousands Rally Nationwide to Protest Gun Violence Demonstrations were held across the U.S. to protest gun violence after 17 people were killed in a Florida high school. US & World Videos 3:32 Biden on campus protests: ‘Order must prevail' 24:50 @Issue: Biden signs the foreign aid bill, and a retrospective of Boston's 2024 Olympics bid 2:15 Opening statements made, witnesses called in hush money trial against Donald Trump 24:46 @Issue: Trump “hush money” trial underway 2:08 Boston announces first chief climate officer