What does the phrase power of the purse the purse refer to?

The phrase "power of the purse" refers to the ability of a governing body, typically a legislature, to control public spending and taxation. This power allows elected officials to influence government policies and priorities by determining how funds are allocated. In the context of the U.S. government, it is primarily associated with Congress, which holds the authority to approve budgets and financial appropriations. This power is a key aspect of the checks and balances within a democratic system.