White interests dominated Arkansas's politics, with disfranchisement of African Americans and refusal to reapportion the legislature. Only after the civil rights movement and federal intervention were more African Americans able to vote. The Supreme Court overturned rural domination in the South and other states that had refused to reapportion their state legislatures or retained rules based on geographic districts. In the landmark ruling of "one man, one vote", it held that states had to organize their legislatures by districts that held approximately equal populations, and that these had to be redefined as necessary after each decade's census.