Trump addressed a crowd gathered outside the firehouse where he just met with state, federal and local officials for a Harvey briefing.

Not all were supportive; one held a sign calling Trump a "liar, cheat, racist" and another sign read "You pardoned Joe, what about Jose?"

Trump stood across the street in the driveway of the firehouse. He stepped on top of a low stool and spoke into a microphone.

"Thank you everybody," Trump said, waving.

After pledging to "get you back and operating immediately," Trump remarked on the crowd size gathered to hear him speak -- as if he were at a rally.

"What a crowd, what a turnout," Trump said.