Franklin Delano Roosevelt served an unprecedented four terms as President, fundamentally transforming the relationship between the American government and its citizens. Born to wealth and privilege, FDR overcame polio to become Governor of New York before winning the presidency in 1932 amid the Great Depression's devastation.
The New Deal represented the most dramatic expansion of federal power in American history. Through programs like Social Security, the SEC, and the Tennessee Valley Authority, Roosevelt created the modern welfare state and regulatory framework. His fireside chats pioneered presidential mass communication, and his confident assertion that 'the only thing we have to fear is fear itself' restored national morale.
As war engulfed Europe and Asia, FDR navigated isolationist sentiment while preparing America for conflict. After Pearl Harbor, he led the Allied coalition to victory, though he died just months before Germany's surrender. His legacy—the modern presidency, international institutions like the UN, and the social safety net—shapes American politics to this day.