The Obama administration's statement that the government will not be adding to the debt by the middle of the decade clashes hard against the facts, Republicans say, leaving officials straining to justify the budget claim they've pushed repeatedly over the past few days. As it turns out, the administration is not counting interest payments. That means the budget team plans to have enough money to pay for ordinary spending programs by the middle of the decade. But it won't have the money to pay off those pesky -- rather, gargantuan -- interest payments. So it will have to borrow some...