In 1930, police used tear gas to disperse a group of unemployed demonstrators in front of the White House. Announcer: Washington became a battleground. Narrator: Two years later, President Herbert ...

On June 1, federal authorities used smoke grenades and tear gas to remove protesters ... Trump along the fence that surrounds ...

C.- Police routed 10,000 people- some of them spectators- in a rally of militant antiwar groups here Saturday afternoon, driving them from in front of the Justice Department with tear gas and clubs.