During a Tuesday interview with the Utah Politics podcast, Romney said that Republicans were "spending massively" when they controlled the government.
"There's no question that if you begin doing things which break precedent or break tradition, the other side is going to do that when they're in charge," Romney said.
Typically, legislation is subject to the filibuster rule, which means 60 senators must vote to approve it.
Romney went on to critique the fact that a number of his GOP colleagues are now raising concerns about the debt Biden and Democrats could add in the coming years.
However, the GOP leader used the same method to push through the 2017 tax cuts—as Romney pointed out.
Last month, Senate Minority Whip John Thune, a South Dakota Republican, complained that there wasn't more concern about the national debt.
"Nobody seems to care much about it," Thune lamented, questioning the high price tag of Biden's relief package. »