David Hearn, 67, who is charged with destruction of property, has pleaded not guilty. He is one of several people the authorities say vandalized the pool.

© Rod Lamkey/Associated Press

David Hearn is one of at least four people accused of vandalizing the Lincoln Memorial Reflecting Pool that has been plagued with challenges.

© Alex Kent/The New York Times

The three individuals face misdemeanor charges of causing damage worth less than $1,000. Experts have said that the problems could have been caused by the pool’s makeover.

© Tierney L. Cross for The New York Times

The group, wearing clothing associated with the organization Patriot Front, assembled near Capitol Hill before leaving the district.

© Cheney Orr/Reuters