New York Times: “Days after the Trump administration completed a $14.2 million project to coat the Reflecting Pool’s concrete floor with dark blue waterproofing material, clumps of algae dotted the surface on Sunday and Monday, giving parts of the pool a green hue.”“The pool was gleaming last week after the work, which was meant to fix two longstanding problems, leaks and algal blooms, before the country’s 250th birthday. But after several hot and humid days, the algae returned in force.”