Demonstrators march through the streets of Winston-Salem, N.C., Monday, July 13, 2015, after the beginning of a federal voting rights trial challenging a 2013 state law. Election law experts say the case could determine how far Southern states can change voting rules after the nation's highest court struck down a portion of the federal Voting Rights Act just weeks before the North Carolina law was passed. (AP Photo/Chuck Burton)
Thursday marks the 50th anniversary of the Voting Rights Act, the landmark legislation that aimed to eliminate racial discrimination in voting. But fights over voting rights have heated up in recent years, a highly partisan battle over how voting ought to work and which regulations are needed to make sure voting is accessible and fair.