More on this from my hero on the right, Bruce Bartlett, who writes:
It goes without saying that provoking a constitutional crisis over the debt limit is a bad idea, but a debt crisis would be worse. At a minimum, the Fourteenth Amendment greatly strengthens the president’s hand in getting the debt limit increased in a timely matter. He should not be afraid to use it.This will bring the GOP into line. Let them try to argue against the President on the constitutionality of his actions. Since both houses of Congress would need to agree to bring suit against Obama on this action, it's a moot point, anyway.