The cost to repaint the Lincoln Memorial Reflecting Pool has ballooned to more than $14.65 million -- exceeding the original estimated cost of the no-bid contract by more than $4 million, according to federal contract data.

The $14 million project has reportedly faced problems similar to those from renovations done by previous administrations.

The Lincoln Memorial Reflecting Pool is refilling after President Trump had it painted "American flag blue." Some visitors say the results of the project — which reportedly cost millions — are subtle.

A nonprofit is suing the National Park Service, the Department of the Interior and Interior Secretary Doug Burgum over the decision to resurface the Lincoln Memorial Reflecting Pool on Washington, D.C.'s National Mall, and to paint the pool's basin blue.

As the Lincoln Reflecting Pool turned green with algae, officials are now using chemicals to fix it.