Protests in Portland, shown here on July 24, have grown increasingly heated with the presence of federal agents. On Monday, groups and individual protesters sued the federal government over its response.

Protesters wave placards and shout slogans as they take part in a rally against police brutality in Portland, Oregon late July 24, 2020. – Police fired teargas and fought running battles with protesters in Portland in the latest night of demonstrations against police brutality and the deployment of federal troops to US cities. (Photo by Kathryn ELSESSER / AFP) (Photo by KATHRYN ELSESSER/AFP via Getty Images)