James Madison

James Madison was born on March 16, 1751, in King George County, Virginia, the eldest of twelve children of James Madison Sr., one of the largest landowners in the Piedmont with roughly a hundred enslaved people on a 5,000-acre plantation. At five feet four inches and a hundred pounds, Madison was the smallest U.S. president by physique. He entered the College of New Jersey (now Princeton) in 1769, studied Enlightenment political philosophy under the college's president John Witherspoon, and graduated in two years alongside classmates including future Vice President Aaron Burr. He returned to Montpelier in 1772 and read deeply in ancient and modern republics — the Dutch, the Swiss, the Achaean League — an autodidactic apprenticeship that prepared him for the Constitutional Convention more than a decade later. Episodes of "mental exhaustion" consistent with present-day understanding of epilepsy punctuated his life without ever halting his intellectual work. He married the widow Dolley Payne Todd in 1794; they had no biological children together, and Dolley's gift for hosting became central to his political life.

During the Revolution, Madison sat in the Virginia House of Delegates, where he helped draft the Virginia Statute for Religious Freedom with Thomas Jefferson. Elected to the Continental Congress in 1780, he became its most informed legislator on finance and parliamentary tactics. At the 1787 Philadelphia Convention his Virginia Plan supplied the agenda; his daily Notes of Debates remain the principal primary source for the framing. In the ratification fight he joined Alexander Hamilton and John Jay under the shared pseudonym "Publius" to produce The Federalist Papers. Madison's twenty-nine essays — particularly No. 10, which argued that an extended republic could neutralize the danger of faction, and No. 51, with its memorable observation that "if men were angels, no government would be necessary" — supplied the working theory of checks and balances that still organizes constitutional argument worldwide. He led the Virginia ratifying convention to a narrow 89–79 victory over Patrick Henry's anti-Federalist opposition.

In the First Congress Madison led the drafting of the Bill of Rights. He had originally opposed enumerating rights, fearing it would imply that unenumerated rights were unprotected, but he reversed his position to honor a campaign pledge and to head off a second constitutional convention. His twelve proposed amendments were trimmed to ten by 1791. Throughout the 1790s, Madison turned against Hamilton's centralizing program; with Jefferson he co-founded the Democratic-Republican Party, anonymously drafted the Virginia and Kentucky Resolutions against the Alien and Sedition Acts, and laid the doctrinal groundwork for states' rights arguments he would later moderate. His break with Hamilton over the Jay Treaty also ended his friendship with George Washington.

As Jefferson's secretary of state (1801–1809) Madison oversaw the Louisiana Purchase and was the named defendant in Marbury v. Madison (1803), in which Chief Justice John Marshall established judicial review. Elected president in 1808, Madison led the United States into the War of 1812 against Britain — the country's first formal declaration of war. The war went badly. In August 1814 British forces routed American defenders at the Battle of Bladensburg, marched on Washington and burned the Capitol and the White House. Madison fled to Virginia; First Lady Dolley famously secured the Gilbert Stuart portrait of George Washington before evacuating. The Treaty of Ghent in December 1814 ended the war as a draw, but Andrew Jackson's January 1815 victory at New Orleans — fought after the treaty was signed but before news reached the front — let Americans remember the conflict as a successful "second war of independence." In the postwar burst of nationalism Madison signed the chartering of the Second Bank of the United States and a protective tariff, many of the Federalist policies he had spent the 1790s opposing. His administration also extracted some 26 million acres from Native American nations through war and treaty, defeating Tecumseh's confederacy at the Battle of the Thames.

Madison's record on slavery is irreducibly contradictory. He privately called the institution "the most oppressive dominion that ever existed," served as president of the American Colonization Society, and supported gradual emancipation in theory. In practice he held more than a hundred people in bondage at Montpelier, sold some to repay debts late in life, and freed none in his will. He retired to Montpelier in 1817 and became the second rector of the University of Virginia after Jefferson's death in 1826, dying on June 28, 1836 — the last surviving Founding Father — at age 85. In his later years he obsessively edited his own correspondence to manage his historical legacy, in one notorious case even forging Jefferson's handwriting. His durable legacy nevertheless is the Constitution itself: the vocabulary of separation, checks, vetoes, federalism and bicameralism that now organizes governance from corporate boards to international organizations comes almost entirely from his pen, and political scientists from Lance Banning to Gordon Wood now rank him as arguably the most consequential founder of all.