when trump said even a knife couldnt cut the reflecting pool sealent

Trump said that on May 4, 2026 , during remarks about the Lincoln Memorial Reflecting Pool renovation. He claimed the new surface was so tough that “if you had a knife … you can’t even cut it,” calling it “very strong” and saying it would last for decades.

What happened next

The line came back into the news after Trump later said the pool had been damaged by vandals with a knife or box cutter, which made the earlier boast look ironic. Reporting at the time also noted that officials and outlets were already debating the condition and durability of the renovation.

Why people noticed it

The quote spread because it was easy to compare with the later damage claim, so it became a quick example of Trump saying one thing and then describing the opposite outcome. In coverage, the exact phrasing was often paraphrased as “even a knife couldn’t cut it,” but the core point was his claim that the seal or liner was knife-resistant.

TL;DR

He said it on May 4, 2026, while praising the Reflecting Pool renovation, and the remark resurfaced after later reports of a cut or slit in the lining.