The Letters of Junius (1769–1772) showcases the anonymous writer’s fearless, razor-sharp attacks on Prime Minister Duke of Grafton, Lord North, Lord Mansfield, and even implicitly King George III—letters that terrified the government while galvanizing public opinion in late-18th-century Britain. At their core is a powerful defense of constitutional liberty: the free press is the “palladium of all your rights,” acting as a moral mirror that forces officials to choose between duty and reputation through relentless scrutiny. Junius warned that liberty dies by inches through “minute encroachments”—small precedents that seem harmless at first but harden into doctrine, enabled by long parliaments (the Septennial Act) that reduced accountability and fostered Crown influence, patronage, and corruption. He fiercely defended the jury’s right to general verdicts in libel cases against Mansfield’s doctrine, which sought to limit juries to mere facts and reserve criminality judgments for Crown-appointed judges. Specific scandals exposed include selling public offices to settle political debts, politically motivated pardons overriding jury verdicts, and the House of Commons voiding voters’ repeated election of John Wilkes in Middlesex to install a government favorite. His final letter directly challenged the king: if the people must defend their God-given rights, on whom could the Crown rely? The letters also circulated widely in the American colonies, where their bold defense of free press, constitutional vigilance, and resistance to arbitrary power resonated with patriots and helped shape the radical Whig ideology that underpinned the American Revolution—this urgent call for citizen vigilance, courage, and active resistance still resonates powerfully today.
