We all have evidence of who wrecked it. This is him taking his motorcade across it right after it was sealed:
President Donald Trump took an unannounced trip to the Lincoln Memorial to see the Reflecting Pool after he had it coated in a color he calls “American flag blue.” He did more than just see it — the president was driven across the new coating before he got out of his SUV to make a statement. The new blue coating will hide the pool’s gray stone, a color Trump said was “never good.” The project cost nearly $2 million, he said.
We all have evidence of who wrecked it. This is him taking his motorcade across it right after it was sealed:
https://www.youtube.com/watch?v=fZDtYhwhD18