Federal prosecutors moved on Friday to drop charges against David Hearn, a former Olympic canoeist accused of vandalizing the Lincoln Memorial Reflecting Pool, acknowledging that a contractor hired by the Trump administration had “botched” its renovation.

In a motion filed in D.C. Superior Court, the U.S. attorney in Washington, Jeanine Pirro, said that her office had received documents showing the damage to the pool “was the result of a flawed installation by the contractor, Atlantic Industrial Coatings, and the rush to complete the project prior to events associated with the America 250 celebration” on July 4.

Mr. Hearn, 67, was one of seven people facing charges in connection with what President Trump had claimed, without evidence, were efforts to sabotage his administration’s renovation of the pool. Mr. Hearn was the only person known to be facing a felony charge, rather than a misdemeanor.

It was unclear if vandalism-related charges against other defendants were also being immediately dismissed.

Mr. Hearn, a former U.S. Olympian, pleaded not guilty this month to a charge of destruction of property. His trial had been scheduled to begin on Sept. 28.

This is a developing story. Check back for updates.