Interior Secretary Doug Burgum was asked to provide proof about Trump's vandalism claims.

On "This Week," Interior Secretary Doug Burgum said additional renovations to the Reflecting Pool will be 'a small number.'

"The algae is all gone. That was a momentary thing. As it was being refilled, there was algae in the pipes," the interior secretary said.

Trump returns focus to his Reflecting Pool after wild July 4th celebration in D.C.