Better yet is just getting rid of it. It's unconstitutional ("full faith and credit shall not be questioned"), if the Treasury decided to ignore it nobody would

Better yet is just getting rid of it. It's unconstitutional ("full faith and credit shall not be questioned"), if the Treasury decided to ignore it nobody would have standing to sue anyway, and it's just redundant: Congress already has the power of the purse, if they want to cut spending, they can propose a budget which does this. The debt ceiling is nothing but Congress shirking its responsibility.