In dozens of cases, the government has pushed to keep protesters behind bars.

A police officer in Pennsylvania fatally shot a man with a knife after his sister said she called police to get him involuntarily committed, leading to street protests and vandalism

Authorities said "anarchists" threw full cans of Pepsi at police officers.

"Numerous" people have been arrested in a May Day march in downtown Portland, Oregon.

Many demonstrated for immigrant rights on the day that typically honors workers and commemorates the fight for their rights.

Many of the protests are expected to focus on President Trump.