Self-proclaimed anarchists swarmed through downtown D.C. on Trump’s Inauguration Day, torching a limousine, smashing bus-stop glass and vandalizing businesses. Then hundreds of thousands of people massed on the Mall the following day for the Women’s March on Washington, waving clever and sometimes scathing signs aimed at the new commander in chief: “There Is So Much Wrong It Cannot Fit on This Sign” and “We Want a Leader, Not a Creepy Tweeter.”