Protests have continued in Portland resulting in local police discharging significant amounts of tear gas.
Footage from July 22 shows many protesters retreat after a confrontation with authorities.
The filmer, Tommie Norton, said: "I actually work at the detention center so I see this almost every day.
"The tear gas really burns, even with an N95!
"There were lots of people, even say a van delivering water and food!
"They seem prepared and I don’t anticipate they will leave anytime soon."
