As Georgia's secretary of state, Kemp was in charge of elections and voter registration during the election. Between 2012 and 2018, Kemp's office cancelled over 1. 4 million voter registrations, with nearly 700,000 cancellations in 2017 alone. On a single night in July 2017, half a million voters had their registrations cancelled. According to The Atlanta Journal-Constitution, election-law experts said that this "may represent the largest mass disenfranchisement in US history. " Kemp oversaw the removals as Secretary of State, and did so eight months after he declared that he was going to run for governor. An investigative journalism group run by Greg Palast found that of the approximately 534,000 Georgians whose voter registrations were purged between 2016 and 2017 more than 334,000 still lived where they were registered. The voters were given no notice that they had been purged. Palast ultimately sued Kemp, claiming over 300,000 voters were purged illegally. Kemp's office denied any wrongdoing, saying that by "regularly updating our rolls, we prevent fraud and ensure that all votes are cast by eligible Georgia voters. "