Perhaps the 5 million quid of tax payers money being spent on the security has had some effect.
I find it laughable that of all the presidents, all the great men that have resided in the White House since the last State Visit in 1918 (Woodrow Wilson), they chose a worthless dolt like George W Bush to be recipient of that honour and stay inside the palace. What happened to Roosevelt's invite for instance?
What a shrecking disgrace. As a Briton, I'm ashamed of the fact he receives that prestigious honour over so many more worthy men. The monarchy is guilty of 80 years of serial stupidity and this is proof positive of that fact.
But then again, this is probably cynical political expediency at work.