Algae thwart Trump's $14.2m attempt to turn reflecting pool ‘American flag blue' The GuardianReflecting Pool woes: Trump administration turns to hydrogen peroxide in latest bid to beat back algae CNNAlgae Is Turning the Reflecting Pool Green. Again. The New York TimesPool owners react to algae bloom turning Trump's reflecting pool green AP NewsWhy the Reflecting Pool Is Full of Algae After Trump's Renovation WIRED