FILE - Federal officers launch tear gas at a group of demonstrators during a Black Lives Matter protest at the Mark O. Hatfield United States Courthouse in Portland, Ore., on July 26, 2020. (AP Photo/Marcio Jose Sanchez, File)

FILE - Police use chemical irritants and crowd control munitions to disperse protesters during a demonstration against police violence and racial injustice in Portland, Ore., Sept. 5, 2020, sparked by the killing of George Floyd. (AP Photo/Noah Berger, File)