Section 4 of the 14th Amendment forbids questioning the validity of the public debt. Since raising the debt ceiling is needed simply to pay for past spending approved by Congress and has nothing to do with future spending, a failure to raise the ceiling would be tantamount to renouncing the nation's legally incurred public debt and thereby defaulting on it. Such failure would therefore be unconstitutional. The the President can and should prevent default by invoking Section 4 of the 14th Amendment, making moot any Congressional refusal to raise the debt ceiling.



