In each of the past few​ years, the federal government has regularly borrowed funds to pay for at least​ one-third of expenditures that tax revenues were insufficient to cover. More than 60 percent of all federal expenditures now go for entitlement spending. This fact implies that the government is paying for most of its discretionary expenditures:.

by borrowing

Explanation:

Some countries depend on borrowing to grow their economy or build infrastructure as many can't do so with the resources they generate within despite their heavy taxes. These countries borrow from countries with larger economies to fund their projects and pay up for this money overtime, as the money borrowed are being spread when payed back.

no questions on whether they are allowed that right