Police pepper spray at anti-Trump protesters during clashes in Washington, DC, on January 20, 2017. Masked, black-clad protesters carrying anarchist flags smashed windows and scuffled with riot police Friday in downtown Washington, blocks away from the route of the parade in honor of newly sworn-in President Donald Trump. Washington police arrested more than 90 people over acts of vandalism committed on the fringe of peaceful citywide demonstrations being held against Trump’s inauguration.