Protesters in Richmond, Virginia, promising to stand with violent Portland, Oregon, activists, are threatening their own clashes with police Saturday night at the city’s Monroe Park, near the controversial memorial to Confederate Gen. Robert E. Lee. In a profanity-laced flier, the protesters promised to “f--- shit up” and encouraged activists to “do what you want.” It also attacks President Trump, federal authorities, and members of the Richmond and Virginia State Police: “F--- the feds. F--- RPD. F--- VSP. F--- Trump.” The flier has come to the attention of the Department of Homeland Security. Monroe Park has been the headquarters for...