McCarthy threatened default in part so he could partially deliver on the right-wing demand that the IRS not hire 87,000 enforcement agents, which it wasn’t going to do anyway. https://www.washingtonpost.com/politics/2023/05/30/debt-ceiling-republicans-mccarthy-irs/?itid=ap_philipbump
McCarthy’s sales pitch for his deal: Less money for law enforcement

The IRS has an unavoidable image problem and the House speaker knows it.

The Washington Post
@pbump Not enforcing IRS regs is almost as good (for the rich) as lowering and eliminating taxes. Either way it screws the average American and makes the rich richer.
@pbump Hmm. Why are GOPers so afraid of law enforcement? It's almost as if they are all... oh, got it.