Activists' lawyers: Sheriff should defend anti-protest laws

FILE - In this Nov. 11, 2016, file photo, more than 500 clergy from across the country gather for a "Clergy for Standing Rock" march on N.D. Highway 1806 near Cannon Ball, N. D. Attorneys for oil pipeline opponents are fighting an attempt by a South Dakota sheriff to be dismissed from a lawsuit challenging new state laws that aim to prevent disruptive demonstrations against the Keystone XL pipeline similar to those against the Dakota Access oil pipeline in North Dakota. Plaintiffs' attorneys in a lawsuit spearheaded by the American Civil Liberties Union argue Pennington County Sheriff Kevin Thom will be enforcing law that infringes on free speech. Thom's attorneys say he must enforce state laws but isn't responsible for defending them.