The Spending Clause gives Congress the power to “lay and collect Taxes, Duties, Imposts, and Excises, to pay the Debts and provide for the common Defence and the general Welfare of the United States.” Beginning in the 1790s, there has been a longstanding debate over the scope of the spending power and the meaning of “general welfare.” James Madison and other Democratic-Republicans argued that the Clause authorizes spending only when it implements other powers granted to Congress in Article I of the Constitution. Alexander Hamilton and the Federalists took a broader view. Hamilton famously argued that the Clause authorized spending, so long as “the object, to which an appropriation of money is to be made, must be general, and not local; its operation extending in fact, or by possibility, throughout the Union, and not being confined to a particular spot.” While Hamilton did not advocate a completely unbounded interpretation of “general welfare,” under which Congress could spend money for virtually any object it considers beneficial, he and the Federalists did believe that the Clause authorized a wide range of spending for purposes that go beyond Congress’s other enumerated powers, so long as they were sufficiently “general.”
The debate between the Madisonian and Hamiltonian views continued throughout much of the nineteenth and early twentieth centuries. As a general rule, Democratic presidents and members of Congress tended to adopt positions similar to Madison’s, or slightly broader. Thomas Jefferson, Madison, James Monroe, James Polk, James Buchanan, and Grover Cleveland all opposed bills authorizing spending on local infrastructure and disaster relief projects, citing constitutional objections. By contrast, the Federalists, the Whigs, and the Republicans tended to take a broader view of congressional power, closer to Hamilton’s position. Whig leader Henry Clay, for example, argued that the Clause authorized his proposal for a wide-ranging “American System” of canal and roadbuilding.
For most of this time, federal grants to state governments were relatively rare, and only a small portion of state finances. The grants that were enacted were mostly—though not entirely—for purposes that could be readily defended even on Madisonian grounds, such as national defense and relief of state debts incurred in the Revolutionary War. Federal grants to state governments became more important in the twentieth century, and the constitutional controversies over them became more significant—especially when it comes to “conditional” grants, which require states to comply with federal dictates of various kinds in order to qualify for their share of the funds. States today rely heavily on federal spending to provide public services; federal funds account for around a third of the average state’s budget. The more conditions Congress can place on the receipt of federal funds, the more control Congress can exercise over the operation of state governments.
In two 1923 cases, Massachusetts v. Mellon and Frothingham v. Mellon, the Supreme Court sharply limited the ability of state governments and individual citizens to challenge such grants. The Court ruled that challengers lacked standing unless the spending conditions inflicted “some direct injury suffered or threatened.” Applied expansively, this principle might make it almost impossible for either states or individual citizens to challenge most conditional spending programs. However, the Court has allowed challenges to some conditional programs in cases where states and individuals demonstrate sufficient potential “injury” to satisfy the Justices.
The Court’s first key case on the scope of the Spending Clause came in 1936. In United States v. Butler (1936), the Court invalidated the first Agricultural Adjustment Act (AAA), a statute that paid farmers to reduce their crop production. The Court expressly took Hamilton’s side of the debate with Madison. It declared, “the power of Congress to authorize expenditure of public moneys for public purposes is not limited by the direct grants of legislative power found in the Constitution.”
Nonetheless, the Court held the AAA unconstitutional on the ground that “[t]he act invades the reserved rights of the states.” Under the Commerce Clause doctrine of the time, reflected in cases like United States v. E. C. Knight Co. (1895), Congress lacked the power to reduce agricultural production directly. The Court concluded that Congress could not pay farmers to achieve the same ends indirectly. Although the Butler Court said it was adopting the Hamiltonian position, a strong case can be made that its decision was more consistent with the logic of the Madisonian position.
Since Butler, the Court has repeatedly endorsed Hamilton’s position—and has arguably gone beyond Hamilton in broadly deferring to Congress’s determination of what expenditures serve the “general welfare,” as in South Dakota v. Dole (1987). Butler’s invalidation of the AAA, by contrast, is now an outlier.
The judiciary’s focus has turned to evaluating the conditions federal spending statutes place on state governments. The Court has invoked three possible constraints on federal grants, with mixed results. First, the Court has required that the federal government make its conditions clear at the time the states accept the grants, and indicate them on the face of the statute. This rule is generally attributed to the Supreme Court’s decision in Pennhurst State School and Hospital v. Halderman (1981). This rule makes it harder to impose grant conditions by requiring precise drafting. But it does not categorically block Congress from imposing any conditions it wants, so long as they are clear enough. The Court has, however, in a few instances, ruled against the federal government in grant cases, because the condition in question wasn’t sufficiently clear. The Court has also applied the Pennhurst rule to make it more difficult for private parties to enforce spending conditions against states. Lower courts have applied the clear statement rule more often.
Second, the Court has said that a condition might be unconstitutional if it was too loosely related to the purpose of the grant to which it was attached. But a grant’s purpose can typically be described broadly enough to ensure that the relatedness doctrine imposes few meaningful limitations. In South Dakota v. Dole, for example, the Court upheld a law conditioning receipt of federal highway funds on states’ raising their drinking ages to 21, because both the funding and the condition promoted “safe interstate travel.”
Third, the Court indicated that Congress’s “financial inducement” might sometimes be unconstitutionally “coercive.” But the Court never actually ruled that a condition coerced the states until its 2012 decision addressing the Affordable Care Act (ACA), NFIB v. Sebelius. One provision of the ACA required states that participated in Medicaid to expand their Medicaid programs to all adults with incomes up to 133 percent of the federal poverty level. In a ruling endorsed by seven of nine justices, the Court held that the threatened loss of all Medicaid funds to states that refused to expand their programs rendered the offer unconstitutionally coercive.
Chief Justice Roberts’s pivotal opinion pointed to three aspects of the Medicaid expansion he found crucial. First, an extremely large amount of money was at stake, making the threat a “gun to the head” of states. Federal Medicaid funding accounts for some 10 to 20 percent of the average state’s revenues. Second, the expansion “transformed” Medicaid from the provision of health care for particular categories of needy people (the elderly or those with disabilities or with children) to a universal guarantee of health care for relatively poor people. Third, states could not have anticipated, when they entered Medicaid many years ago, that Congress would later condition continued participation in that program on entry into the “dramatically” transformed program created by the ACA.
NFIB is still the only time that a majority of the Court has invalidated a spending condition because it coerced the states. It remains unclear what, if any, other statutes might prove coercive on the Chief Justice’s analysis, which blended concerns about the uniquely large stakes with aspects of the notice and relatedness requirements. But the Court’s decision does show that there remain some judicially enforceable limits on the conditional spending power.
Conditions attached to grants given to private organizations get less judicial scrutiny. The coercion, relatedness, and clear statement requirements generally do not apply, at least not with anything like the same force. However, such grants are sometimes constrained by the doctrine of “unconstitutional conditions,” which restricts grants conditioned on giving up constitutional rights.
Although federal courts have given Congress broad leeway to impose conditions on federal grants, they have rightly placed much tighter limits on executive branch attempts to impose conditions unilaterally. They have accordingly focused on whether the language of statutes adopted by Congress provided authorization for the conditions imposed by the executive branch. During President Donald Trump’s first administration (2017-21), courts repeatedly struck down administration efforts to impose executive-generated grant conditions on “sanctuary” jurisdictions – state and local governments that refuse to assist various federal efforts to deport undocumented migrants. As of this writing, there have been several similar rulings in Trump’s second term. See, e.g., City and County of San Francisco v. Trump, 2025 WL 1282637 (N.D. Cal. May, 3, 2025).
Courts have also generally rejected presidential efforts to “impound” funds allocated by Congress, thereby refusing to spend them. In the early 1970s, President Richard Nixon asserted a broad executive impoundment authority. Congress enacted the Impoundment Control Act of 1974, constraining that discretion. The Supreme Court refused to construe statutes to grant boundless executive discretion in Train v. City of New York (1975). As of this writing, the second Trump Administration has flirted with the notion of asserting a Nixon-like broad impoundment power, and has tried to aggressively construe statutes to allow such withholding. The ultimate outcome of the resulting litigation remains to be seen. But a broad consensus of jurists and legal scholars largely agrees that the executive does not have a general impoundment power, though Congress may authorize a degree of executive discretion. Ultimately, the spending power belongs to Congress, not the executive.