Agents from various Department of Homeland Security branches were deployed early in July to protect the federal courthouse in Portland, Ore.

A member of the Stutsman County Police SWAT team stands by a MRAP vehicle equipped with a long range acoustic device, also known as a sound cannon, while deployed to watch protesters demonstrating against the Dakota Access pipeline in Cannon Ball, N.D., on Oct. 30, 2016.
Photo: John L. Mone/AP

Columbia Police and the Richland County Sheriff's Department in South Carolina marched through the streets after enacting a curfew amid protests. Jason Lee/The Sun News via AP

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