Three defendants face misdemeanor charges after being accused of peeling coating from the Lincoln Memorial Reflecting Pool.

A section of the liner that runs at the bottom of the Lincoln Memorial Reflecting Pool was cut with a sharp knife or razor earlier this month, according to an official at the National Park Service (NPS).

Congressional Democrats are calling for investigations into renovations at the Lincoln Memorial Reflecting Pool, as the ongoing drama over the president’s problem-plagued, $16 million rehabilitation project continues to roil the capital.