Despite opposition by Republicans and Populists, Democrats completed their dominance with passage of a new constitution in 1901 that restricted suffrage and effectively disenfranchised most African Americans and many poor whites, through requirements for voter registration, such as poll taxes, literacy tests and restrictive residency requirements. From 1900 to 1903, the number of white registered voters fell by more than 40,000, from 232,821 to 191,492, despite a growth in population. By 1941 a total of more whites than blacks had been disenfranchised: 600,000 whites to 520,000 blacks. This was due mostly to effects of the cumulative poll tax.