10th Amendment — LLMpedia

10th Amendment
Ssolbergj · Public domain · source
Name	Tenth Amendment
Ratified	December 15, 1791
Partof	United States Bill of Rights
Jurisdiction	United States

Contents

10th Amendment The Tenth Amendment to the Constitution of the United States reserves to the States of the United States or the people powers not delegated to the United States Congress nor prohibited by the Constitution of the United States. Adopted as part of the United States Bill of Rights in 1791 during debates involving figures such as James Madison, Alexander Hamilton, and Thomas Jefferson, it has been central to disputes over the scope of federal authority in matters including commerce, taxation, and public welfare.

Text of the Amendment

The amendment reads: "The powers not delegated to the United States by the Constitution of the United States, nor prohibited by it to the States of the United States, are reserved to the States of the United States respectively, or to the people." The phrasing reflects usage common in writings by James Madison, George Mason, and pamphlets like those of the Anti-Federalist movement, and echoes concerns raised during the ratification debates in state ratifying conventions such as those in Virginia and Massachusetts.

Concerns about centralized authority animated the disputes between proponents of the Federalist Party—including Alexander Hamilton, John Jay, and George Washington—and opponents like Patrick Henry, Samuel Adams, and George Mason. The call for explicit protections of state authority and individual liberties shaped the additions drafted by James Madison and debated in the First United States Congress. Ratification by state legislatures and conventions followed the pattern set by the Bill of Rights ratification process, with states like New York, Virginia, and North Carolina playing pivotal roles. The amendment’s provenance also intersects with events such as the debates over the Articles of Confederation and the drafting sessions at the Philadelphia Convention.

Interpretation of the amendment has evolved through key decisions of the Supreme Court of the United States. Early cases considered federalism themes in contexts like McCulloch v. Maryland and Gibbons v. Ogden, though neither cites the amendment text directly; later jurisprudence addressed the amendment more explicitly. Decisions such as United States v. Darby Lumber Co., Wickard v. Filburn, and NLRB v. Jones & Laughlin Steel Corporation expanded federal regulatory power under the Commerce Clause, challenging narrow readings of reserved powers. Subsequent rulings including United States v. Lopez, United States v. Morrison, and National Federation of Independent Business v. Sebelius revisited limits on federal reach, implicating doctrines associated with the amendment. State-centered litigants including the State of Arizona and the State of Texas have invoked federalism principles in suits against agencies such as the Department of Justice and the Department of Health and Human Services.

Politicians, jurists, and scholars have contested the amendment’s meaning in debates involving organizations like the Republican Party (United States), Democratic Party (United States), American Civil Liberties Union, and think tanks such as the Cato Institute and the Brookings Institution. Movements including nullification proponents, states' rights advocates, and proponents of cooperative federalism have advanced contrasting interpretations. Key episodes include disputes over New Deal legislation, clashes during the Civil Rights Movement involving the Civil Rights Act of 1964 and the Voting Rights Act of 1965, and contemporary controversies over federal mandates in areas contested by governors like Ron DeSantis and Andrew Cuomo.

The amendment has been invoked in policy arenas such as health care in the United States, exemplified by litigation over the Patient Protection and Affordable Care Act; environmental protection in conflicts involving the Environmental Protection Agency; criminal justice where state law enforcement interacts with federal agencies like the Federal Bureau of Investigation; and education in the United States where federal statutes like the No Child Left Behind Act and Every Student Succeeds Act raise questions about conditional funding. States including California, Texas, and Florida have litigated or legislated using reserved-power arguments in domains from marijuana legalization to immigration enforcement.

Modern controversies engage the amendment’s reserve-text framework in debates over federal regulatory reach in technologies overseen by agencies such as the Federal Communications Commission, Securities and Exchange Commission, and Food and Drug Administration. Cases involving state challenges to federal emergency declarations, pandemic responses in COVID-19 pandemic in the United States, and climate policy illustrate ongoing tensions. Scholarly discourse in journals produced by institutions like Harvard Law School, Yale Law School, and the University of Chicago continues to refine concepts such as interstate commerce, preemption, and anti-commandeering doctrine (seen in cases like New York v. United States and Printz v. United States). Political actors from state attorneys general—e.g., Ken Paxton and Letitia James—to federal legislators engage in litigation and legislation that test the amendment’s practical boundaries.