Donald Trump repeatedly insisted that vandals armed with knives had deliberately sliced apart the newly renovated Lincoln Memorial Reflecting Pool.
Now a court filing claims that a government engineer used a knife on the pool himself.
The reason was not sabotage.
According to attorneys for former Olympic canoeist David Hearn, the engineer cut away sections of coating that were already loose because allowing them to continue flapping could make the peeling worse.
The allegation creates another devastating problem for the vandalism narrative Trump has refused to abandon—even after federal prosecutors acknowledged that the pool’s damaged surface resulted from a “botched installation.”
Hearn’s attorneys filed a motion Monday asking a D.C. Superior Court judge to permanently prevent the government from prosecuting him again over the incident.
Prosecutors have already moved to dismiss the felony case.
But Hearn wants the dismissal entered with prejudice, meaning the same charge could not simply be revived later.
His lawyers argue that protection is necessary because Trump continues to publicly insist that vandalism occurred, disagrees with the dismissal and has attacked U.S. Attorney Jeanine Pirro for abandoning the prosecution.
Without a permanent resolution, they warn, Hearn remains vulnerable to renewed “harassment based on the same discredited allegations.”
The controversy began June 19, when Hearn stopped at the Reflecting Pool during a 50-mile bicycle ride.
The former Olympic canoeist told the Associated Press that he noticed loose coating along the pool and touched a piece while attempting “to satisfy my curiosity as a citizen.”
Federal authorities transformed that encounter into a felony vandalism case.
Pirro’s office initially accused Hearn of intentionally damaging government property. Trump amplified the accusation, repeatedly claiming that vandals had cut large portions of the liner with knives.
The president’s description of the damage expanded as he retold the story.
According to Forbes, Trump first described approximately 250 feet of damage. The figure then became 300 feet, followed by 350 feet and eventually “300 yards long.”
But the government’s own records reportedly showed that the coating was peeling before Hearn touched it.
“The government’s own evidence showed that the condition of the liner attributed to Mr. Hearn existed before he touched the Pool,” his attorneys wrote.
Their new filing adds the most extraordinary detail yet.
On July 13, federal agents photographed damage across the Reflecting Pool while accompanied by a National Park Service engineer.
According to Hearn’s lawyers, that engineer told investigators he had personally used a knife to cut off loose portions of the liner or coating.
“The government’s own engineer determined that it was better to cut off the peeling sections than to let them flap around,” the filing states.
That does not necessarily prove that nobody ever vandalized any portion of the pool.
Nor does an engineer’s attempt to remove damaged material automatically establish what caused every cut or tear observed by investigators.
But it gravely weakens the administration’s claim that knife marks alone demonstrated criminal sabotage.
If a government employee was authorized—or at least professionally motivated—to cut failing sections away, investigators could not responsibly treat every cut as evidence of vandalism without determining who made it and why.
Hearn’s attorneys say that basic investigative work occurred only after officials rushed to charge their client.
“The sprint to charge Mr. Hearn mirrored the expedited timeline to complete the Pool renovations,” they wrote.
The project had itself been accelerated to meet Trump’s deadline for America’s 250th-anniversary celebrations. Subsequent government records reportedly documented peeling, installation failures and concerns raised before Hearn visited the site.
On July 31, Pirro finally moved to dismiss the case, acknowledging that the evidence pointed toward defective installation rather than provable vandalism.
Trump reacted furiously.
He accused his longtime ally of choking under pressure and said she “folded like an umbrella.” Reports indicated that the president spent the weekend angry about the decision and was considering removing her.
Pirro later went to the White House carrying a box of evidence, intensifying speculation about the confrontation.
The president’s anger explains why the wording of Hearn’s dismissal matters.
An ordinary dismissal without prejudice could leave open the possibility that prosecutors bring the case again. A dismissal with prejudice would shut that door.
No judge has yet decided whether Hearn is entitled to that protection. The government could argue that there is no realistic threat of renewed prosecution and that courts should not impose a permanent bar unnecessarily.
But Hearn’s attorneys can point to the president’s own words.
Trump has rejected his prosecutors’ conclusion, continued accusing vandals and publicly punished Pirro for refusing to pursue a case her office could no longer support.
The administration claimed a knife exposed the vandal.
Now the defense says the knife was in a government engineer’s hand—and the man Trump accused wants a judge to make sure this case can never come back.
