NEW : At least 56 arrested near Democratic National Convention . CNN Watch the police take on the protesters » . ` : CNN staff sees protesters use guns , tear gas and pepper spray . Nearly 5,000 protesters marched peacefully in St. Paul . ` ` Splinter group '' break windows , throw benches into streets .
NEW : At least 56 arrested near Democratic National Convention . CNN : CNN staff sees protesters use guns , tear gas and pepper spray . Nearly 5,000 protesters marched peacefully in St. Paul . ` ` Splinter group '' break windows , throw benches into streets .