Simple. He can’t help himself. He promised he could fix the Reflecting Pool... and lo and behold its not fixed. The idea that some guy dove in, cut the lining, and started ripping it is ridiculous. Wheres the film? DC is covered in cameras.
Construction is what interests Trump. Simple as that. He’s obviously taken a personal affront to the allegations of shoddy work situation and can’t let it go to focus on more presidential duties.