Greeting Air Force One as it touched down under sunny skies and sultry heat was a hand-painted banner draped across the top of an airplane hangar that reads, “Obama Welcome to SUX – We Did Build This.” “SUX” is the airport code for Sioux City.

The message appeared to be a response President Obama’s “you didn’t build that” remark from a July campaign rally, when he was trying to explain that government — not businesses — constructed public infrastructure on which the economy relies. Republicans have used the four words to attack Obama as out of touch with the realities of owning and operating a small business…

A campaign spokeswoman said the banner was not visible from the presidential motorcade.

There were no identifying markers on the hangar or the banner to suggest who made it, and a call to the Woodbury County GOP was not immediately returned.