More than a thousand people showed up in downtown Portland early Saturday to peacefully protest, about three days after the announcement that the presence of U.S. agents there would be reduced.

Images of Portland Mayor Ted Wheeler getting tear-gassed alongside protesters made him an overnight standard-bearer for the movement against President Donald Trump’s use of federal agents to quell violence in U.S. cities.

The Justice Department inspector general says it will conduct a review of the conduct of federal agents who responded to unrest in Portland, Oregon, and Washington, D.C.