The “power of the purse” is control of federal spending, and it is an authority of Congress, established in Article I, Section 9, Clause 7, which states that, “No money shall be drawn from the treasury, but in consequence of appropriations made by law, and a regular statement and account of receipts and expenditures of all public money shall be published from time to time.” James Madison wrote of this power in Federalist 58: “The House of Representatives cannot only refuse, but they alone can propose, the supplies requisite for the support of government. They, in a word, hold the purse . . . This power over the purse may, in fact, be regarded as the most complete and effectual weapon with which any constitution can arm the immediate representatives of the people, for obtaining a redress of every grievance, and for carrying into effect every just and salutary measure.”
Glossary Term

