In Alabama in 1963, an African American woman named Grace Jefferson was kept from voting because she did not have enough money to pay the required tax. What prevents this from happening today? An amendment to the Constitution A state law The outcome of a U.S. Supreme Court case A presidential order
"The outcome of a U.S. Supreme Court case" would be the best option, since this is how many of the Jim Crow-era barriers to voting such as the Poll Tax were eventually eliminated.
