Hayes ended Reconstruction by withdrawing federal troops from the South, effectively ending federal enforcement of civil rights in the former Confederate states. His presidency marked the beginning of the Gilded Age political era.

Garfield served only 200 days before being assassinated by a disappointed office-seeker, Charles Guiteau. His death spurred momentum for civil service reform and professionalization of the federal bureaucracy.

Arthur surprised critics by championing civil service reform, signing the Pendleton Civil Service Reform Act (1883), which established a merit-based federal hiring system to replace the spoils system.

Cleveland was the first Democrat elected president since the Civil War, emphasizing limited government and fiscal conservatism. He signed the Interstate Commerce Act (1887), the first federal law to regulate private industry.

Harrison oversaw passage of the Sherman Antitrust Act (1890), the first federal law targeting monopolies, as well as the McKinley Tariff. His administration also admitted six new western states to the Union.

Cleveland's second term was dominated by the Panic of 1893, a severe economic depression. His use of federal troops to break the Pullman Strike (1894) angered organized labor and split the Democratic Party.

McKinley led the nation into the Spanish-American War (1898), transforming the United States into a global imperial power and acquiring territories including Puerto Rico, Guam, and the Philippines. He was assassinated in 1901.

Roosevelt was the defining figure of the Progressive Era, using the presidency as a “bully pulpit” to bust trusts, regulate corporations, conserve natural resources, and assert American power abroad through the Panama Canal and Roosevelt Corollary.

Taft pursued Dollar Diplomacy abroad, using U.S. financial investment to expand American influence in Latin America and Asia. Despite filing more antitrust suits than Roosevelt, he was seen as too conservative, splitting the Republican Party.

Wilson enacted sweeping domestic reforms including the Federal Reserve Act and Clayton Antitrust Act, then led the nation through World War I. His Fourteen Points and vision for the League of Nations shaped modern international relations, though the Senate rejected the Treaty of Versailles.

Harding won a landslide victory promising a “return to normalcy” after WWI, reducing government intervention and cutting taxes. His administration was marred by the Teapot Dome scandal and other corruption before his death in office in 1923.

Coolidge presided over the “Roaring Twenties” economic boom, famously declaring that “the business of America is business.” His laissez-faire policies contributed to the speculative prosperity of the 1920s that preceded the Great Depression.

Hoover took office just months before the stock market crash of 1929 triggered the Great Depression. His reluctance to provide direct federal relief and faith in voluntary cooperation proved inadequate to the crisis, leading to massive unemployment and Hoovervilles across the country.

FDR transformed the role of the federal government through the New Deal, creating Social Security, the SEC, and numerous relief and jobs programs. He then guided the nation through World War II, forging the Allied coalition that defeated Nazi Germany and Imperial Japan.

Truman made the decision to drop atomic bombs on Hiroshima and Nagasaki, ending WWII. He then established the architecture of the Cold War through the Truman Doctrine, Marshall Plan, NATO, and led UN forces in the Korean War.

Eisenhower managed Cold War tensions through massive retaliation and covert CIA operations while maintaining prosperity at home. He warned of the growing “military-industrial complex” and signed legislation creating the Interstate Highway System.

Kennedy navigated the Cuban Missile Crisis — the closest the Cold War came to nuclear war — and launched the Space Race with the goal of reaching the moon. His assassination in Dallas on November 22, 1963, shocked the nation.

LBJ enacted the most sweeping domestic legislation since FDR's New Deal through his Great Society programs, including the Civil Rights Act (1964), Voting Rights Act (1965), and Medicare/Medicaid. However, his escalation of the Vietnam War destroyed his presidency.

Nixon opened diplomatic relations with China, pursued détente with the Soviet Union, and withdrew U.S. forces from Vietnam. He created the EPA and signed Title IX, but the Watergate scandal — a cover-up of a political burglary — forced his resignation, the only president to do so.

Ford was the only president never elected to either the presidency or vice presidency, ascending after Nixon's resignation. His pardon of Nixon proved deeply controversial, likely costing him the 1976 election.

Carter brokered the historic Camp David Accords between Egypt and Israel, but his presidency was crippled by the Iranian hostage crisis and stagflation. His emphasis on human rights reshaped American foreign policy principles.

Reagan's supply-side “Reaganomics” slashed taxes and regulations while massively increasing defense spending. His aggressive anti-Soviet stance and the Reagan Doctrine of supporting anti-communist movements contributed to the end of the Cold War.

Bush presided over the fall of the Berlin Wall and the peaceful end of the Cold War, then assembled a broad international coalition to expel Iraq from Kuwait in the Gulf War. His “read my lips, no new taxes” pledge reversal contributed to his 1992 defeat.

Clinton oversaw the longest peacetime economic expansion in U.S. history, with budget surpluses and low unemployment. He signed NAFTA and championed welfare reform, but his presidency was overshadowed by the Monica Lewinsky scandal and his subsequent impeachment.

The September 11, 2001 terrorist attacks defined Bush's presidency. He launched the War on Terror, invading Afghanistan and Iraq, established the Department of Homeland Security and the USA PATRIOT Act, while Hurricane Katrina and the 2008 financial crisis challenged his legacy.

Obama became the first African American president and steered the nation out of the Great Recession through the stimulus package and auto industry bailout. His Affordable Care Act (ACA) was the largest expansion of health coverage since Medicare, and he oversaw the killing of Osama bin Laden.

Trump's “America First” agenda included major tax cuts, renegotiation of trade deals including USMCA to replace NAFTA, and a hard line on immigration. His presidency ended amid the COVID-19 pandemic and controversy over the January 6, 2021 Capitol riot; he was impeached twice.

Biden managed the tail end of the COVID-19 pandemic, overseeing vaccine distribution and signing major infrastructure and climate legislation. His presidency included the chaotic withdrawal from Afghanistan and significant military support for Ukraine following Russia's 2022 invasion.

Trump returned to the presidency for a non-consecutive second term, the first president to do so since Grover Cleveland. His second term has focused on tariffs, deregulation, immigration enforcement, and executive restructuring of the federal government.