Matt Viser: “Workers on the National Mall, desperate to turn the Reflecting Pool to President Trump’s preferred shade of blue, poured jug after jug of hydrogen peroxide into the water yesterday morning. As they did so, members of the National Guard, deployed to clean up crime, looked on. The water, at that moment, matched their mossy-green fatigues.”“The Reflecting Pool now evokes the joy of a Green Bay Packers victory. Or a high-school prank. Or St. Patrick’s Day in Chicago. It most certainly is not the gleaming American-flag blue that Trump’s repainting of the pool was supposed to produce.”“That project—the one that cost taxpayers at least $16.4 million and came with a nanobubbling system that promised to kill off algae growth—is hidden under 18 to 30 inches of swamp water dense with scraggly plumes of algae.”