Abrams will appear before a civil rights subcommittee on June 25.
During her unsuccessful 2018 bid for governor, Abrams accused her opponent, Republican Brian Kemp, of suppressing minority votes as Georgia's chief elections officer. Kemp vehemently denied it, pointing to record registration numbers.
The Shelby County v. Holder ruling discarded a requirement that jurisdictions with a history of voting discrimination seek approval from the federal government before changing the way they conduct elections.
An ongoing lawsuit filed by a group Abrams founded asks that Georgia be required to get a federal judge's approval before changing voting rules.
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