U.S. President Donald Trump believed he had a solution to the reflecting pool's algae problems: painting its bottom a particular shade of blue. Less than two weeks after the repair work finished, the algae is back.

The Department of the Interior said the algae bloom turning the pool green was being “vacuumed up as we speak.”

Algal blooms have hit the site, between the Lincoln Memorial and the Washington Monument, after a $14.2 million repair project.

‘I think it’s a mess. I’ve never seen it this green before,’ one area resident griped