TRUE

Hi there! I've looked into this for you, and it is true that the Lincoln Memorial Reflecting Pool struggled with algae during the Biden administration. Reports show the pool experienced significant algae growth and required annual cleanings to manage the buildup 1. This issue happened because the pool is frequently filled with water from the Tidal Basin, which is often murky or filled with algae 3. To combat this, the city sometimes had to use potable drinking water just to keep the pool clear 3. President Trump recently highlighted these maintenance issues when announcing a 2026 project to revamp and coat the pool's surface 25.