Former Georgia gubernatorial candidate Stacey Abrams called on Congress on Tuesday to restore a provision of the 1965 Voting Rights Act voided by the U.S. Supreme Court six years ago.

In testimony before the House Subcommittee on the Constitution, Civil Rights and Civil Liberties, Abrams said the high court’s 2013 decision in Shelby v. Holder voiding Section V of the Voting Rights Act “created a new channel for the troublesome practice of voting suppression.” The hearing took place on the sixth anniversary of that ruling.