I guess you do not know how this works, everytime Trump goes on vacation, they shut down airports near his golf courses so he can play golf, those airports have lost big money and business, you can easily look it up.  Ellington field is SE of Houston and the flights from all the airports must have been shut down or on hold, maybe it was a limited time, but the last thing they need to do is disrupt flights from airports that were shut down due to the hurricane.  The Houston trip is nothing but an expensive photo opp.