Two Seattle police officers are facing termination after they stood by and watched as rioters scaled walls, climbed barricades, and break windows.
Train service has shut down and roads are buckling under a heat wave that climate experts say will only get more frequent.
One of the four striking workers has already been hospitalized.
In February, Seattle-area Amazon drivers received settlement notices that they'd won $8.2 million in a class action settlement pending court approval.
Johnny Stine also allegedly charged up to $1,000 for the unproven vaccine, authorities say.
The officer appears to shove another protester before two other officers kneel down next to the injured man.
Police used tear gas and impact munitions to disperse crowds, and over a hundred protesters were arrested.
Police arrested well over 100 people, and shootings at demonstrations in Austin, Louisville, and Colorado left several people injured and one dead.
A federal plane landed just south of downtown Seattle with officers from Customs and Border Patrol.