"Because you can understand dirt maybe better than I can, but I don't allow it."In June, Trump announced the pool had opened "to rave reviews," arguing its surface had not been painted but sealed with a "highly sophisticated material, industrial strength, that could last for 100 years, applied by very talented people".Within days of the opening, videos began circulating on social media showing algae returning to the water, with online commentators attacking it as a failure of the administration On Thursday, the US department of the interior stated that the Reflecting Pool water was now "crystal clear, and our National Park Service team is now vacuuming up the dead algae resting on the bottom".The department described using "advanced nanobubbler technology" as a permanent solution to algal growth that has "plagued every Lincoln Reflecting Pool reopening — most infamously Obama's reopening — since 1922.However, on Friday, further videos began circulating of more algae in the pool