Example image of eyePlorer eyePlorer map for 'Republican Party (United States)': Democratic Party (United States) Major party Political parties in the United States Two-party system Centre-right Party platform Political party strength in U.S. states President of the United States List of current United States governors List of United States state legislatures United States House of Representatives United States Senate Abolitionism Ripon, Wisconsin Whig Party (United States) Abraham Lincoln American Civil War Reconstruction era of the United States Kansas–Nebraska Act Jackson, Michigan John C. Frémont Midwestern United States Northeastern United States United States presidential election, 1856 Entrepreneurship National Union Party (United States) United States presidential election, 1864 Radical Republicans Horace Greeley Ulysses S. Grant Civil service Half-Breed (politics) Spoils system Gold standard Hawaii Tariffs in American history Prohibition Protestantism Interstate Commerce Commission Sherman Antitrust Act McKinley Tariff Grover Cleveland Realigning election United States presidential election, 1896 William McKinley Panic of 1893 Theodore Roosevelt Trust busting Progressive Party (United States, 1912) William Howard Taft