June 2, 1924 Republican President Calvin Coolidge signs bill passed by Republican Congress granting U.S. citizenship to all Native Americans

October 3, 1924 Republicans denounce three-time Democrat presidential nominee William Jennings Bryan for defending the Ku Klux Klan at 1924 Democratic National Convention

December 8, 1924 Democratic presidential candidate John W. Davis argues in favor of “separate but equal”

June 12, 1929 First Lady Lou Hoover invites wife of U.S. Rep. Oscar De Priest (R-IL), an African-American, to tea at the White House, sparking protests by Democrats across the country

August 17, 1937 Republicans organize opposition to former Ku Klux Klansman and Democrat U.S. Senator Hugo Black, appointed to U.S. Supreme Court by FDR; his Klan background was hidden until after confirmation

June 24, 1940 Republican Party platform calls for integration of the armed forces; for the balance of his terms in office, FDR refuses to order it