The United States government is in debt. But is this a problem? After all, can’t the federal government simply print more money without repercussions? Unfortunately, the solution is not that simple. What could happen they didn't pay it off? The government not paying off there debt could increase interest rates, which could then increase prices and contribute to inflation. The stock market would also suffer if they don't pay it off. Ways they could reduce the national debt would be, raising taxes, slashing government expenses, and cutting military expenditures.
(I didn't know if your first sentence was your intro or not, sorry! you may take it out if not. Hoped this helped!)