The federal government is obligated to pay all US debts as they come due. Our national debt isn't a burden for anyone, including the US government. The US has an unlimited credit card to obtain 'debt' at whatever interest rates it so chooses. It can create all the money it needs to pay off any and all debt without creating new debt if it so chooses. The only time we'd run into trouble is if the government taxed more than it spent (running budget surpluses) . Again, no matter anyway you cut it, spending is virtually costless for the federal government.
Here's the reality: the US Government has no limits on its ability to create/spend money other than one that's arbitrarily self-imposed. The level of public debt or debt-to-GDP ratios cannot affect the government's ability to spend. It all boils down to appropriations by Congress. A fiscal policy should be measured by policy outcomes, not by something as trivial as the size of the deficit.
You two are seriously scary! I'm getting the impression that both of you actually attended college somewhere and may have taken some economics classes (unlike Rshermr...who's absolutely clueless about the subject) but at some point you bought into this fantasy that because the Federal Government can create money that it has a "magic credit card" that it can keep running up debt on.