The government now borrows about 42 cents of every dollar it spends. Imagine that one day soon, the borrowing slams up against the current debt limit ceiling of $14.3 trillion and Congress fails to raise it. The damage would ripple across the entire economy, eventually affecting nearly every American, and rocking global markets in the process.

A default would come if the government actually failed to fulfill a financial obligation, including repaying a loan or interest on that loan.