"The validity of the public debt of the United States, authorized by law, including debts incurred for payments of pensions and bounties for services in suppressing insurrection or rebellion, shall not be questioned.â€
I'm no lawyer, nor did I stay at a Holiday Inn Express last night, but it sounds to me that this means all lawful debts must be paid before any new spending is considered. Any revenue coming in from taxes, tariffs and what have you must first be used to pay debts already owed by the government .