Peaceful demonstrations in downtown LA escalate to violent confrontation with police using tear gas as protesters throw objects, prompting warnings from LAPD and Homeland Security.

The curfew is now in effect in downtown Los Angeles. Many streets across the area are quiet, but there are still many protesters who have lingered in the area. The police have used so-called less lethal munitions and chemical irritants at times in an effort to disperse protesters. Here’s what else to know:

Virtually every flashpoint in American politics right now involves the First Amendment right to free speech and free expression.

The No Kings anti-Trump protests against Trump will be widespread and potentially historic like the 1960s civil rights protests.

The Army pulled off a sweeping affair featuring more than 6,000 soldiers, 50 aircraft, and fireworks to cap the event highlighting its 250th anniversary.

Social media users slammed CBS News for seemingly advertising "No Kings Day" protest merchandise ahead of anti-Trump demonstrations, calling the move unethical amid controversies.

No Kings Day was biggest anti-Trump protests in Austin yet. Latino protesters are fighting to keep immigration front and center.

Los Angeles Mayor Karen Bass announced that the nightly curfew will be extended for a few more days amid ongoing protests against immigration raids.