Republicans played that budget game when Hurricane Sandy struck Democratic New York, New Jersey, and Delaware. Senator Cruz and other Texas congresspeople courageously saying it's all about principles. Yeah, beating up on Democrats.
Do you REALLY think Republicans are going to play that game when it is Republican Texas who is being harmed? Do you REALLY think Ted Cruz of Texas is going to demand budget discipline? He's already champing at the bit for federal aid.
Oh, wait: Houston voted for Hillary. Maybe the Republicans will try that gambit, after all.
How about cutting FEMA, Thor? That's what Trump's staff proposed prior to Hurricane Harvey to help pay for Trump's Wall.
How about cutting the EPA? Who needs all those burdensome, interfering EPA experts? Texans can handle exploding chemical plants, and heavy metals and other toxins in the flood waters, right?

Or maybe install taxi-style fare meters on those US Army rescue helicopters for the rescued people to pay?