Debt and deficit
The USA has the world's largest debt- in the region of 22 Trillion before the pandemic of 2020.
America also has a large trade deficit- it imports more than it exports
And fiscal deficit- tax revenues are lower than income
All three of these things have become politic issues - they divide parties and fuel debates in elections. But they also divide economists. This is because economists differ over exactly how bad debt and deficit is. It is generally accepted that a surplus economy with no debt would be better, at least for an individual nation- globally this would not be good, but exactly how much better is a matter of debate.
A nice summary of the politics of debt.
A few years old but make sthe case for not being too worried about debt
This film was made before the pandemic-. Now there are many more cpuntries whose debt is increasing as a % of GDP-but America found it could borrow more to meet the pandemic.