Or the government could spend less.
That need not be an " Either/Or" choice. They could, and probably should, do both. At least when it comes to special interest spending. Things like corporate welfare, neverending wars, sweetheart over-budget projects, etc.
The coming challenges of climate change added to the nation's aging neglected infrastructure is going to require significant upfront investment. Even though doing so, besides being necessary, should be fiscally positive longterm.