The plaintiffs, registered Georgia voters, have been identified as LaTosha Brown, Jennifer N. Ide, Katharine Wilkinson, Candace Fowler and Chalis Montgomery.
He calls it an investigation.
Over 53,000 voter registrations are still pending because, according to Kemp's office, the applications do not match other government records.
The FBI declined to comment on the matter. Libertarian Party candidate Ted Metz could increase the likelihood of that happening if he peels away enough voters from Kemp and Abrams.
Kemp asked the FBI to investigate the Democratic Party, accusing it of trying to hack the system he controls as secretary of state. On Tuesday, voters will determine which party controls the US Congress as well as pick governors in 36 states, among them Georgia.
In Georgia, critics have drawn attention to Kemp's dual role as candidate for governor and supervisor of the state's elections, in his capacity as Georgia secretary of state.
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Candice Broce, a spokesperson for the Georgia Secretary of State's Office, told CNN: "We have notified Secretary Kemp of this lawsuit".
Speaking of issues, a win by Kemp will tell Georgia's traditionally Chamber of Commerce Republican Party to leave their suits and ties at home for the next election.
"Make things better here in Georgia", Obama urged a crowd of voters last week while endorsing Abrams at Morehouse College in Atlanta.
In the event that national polls are correct and blue wave does come to fruition, look for more Republicans to follow Kemp's lead and suddenly worry about election hacking. The party published two emails that purport to show a private individual who pointed out potential vulnerabilities in systems used by Georgia residents to print sample ballots and registration information that the individual suggested could allow a hacker to steal or manipulate registration information. "It's another failure of Kemp's office to actually have a secure election system in the state".
According to AP interviews and records released by the Georgia Democratic Party, the lawyer for the election-security advocates, David Cross, notified both the Federal Bureau of Investigation and Kemp's counsel Saturday morning that a citizen had alerted him to the flaw.
If the voice and the overtly racist tone on the robo-call sound familiar, it's because it's from the same studio that stuffed a "We Negroes" robo-call down the throats of Florida voters, who are deciding whether they want Tallahassee Mayor Andrew Gillum to be the state's first black governor. "You can change voter registration".
On Saturday, a federal judge ruled that the state must relax voting restrictions that could prevent more than 3,000 people from casting ballots in Tuesday's poll.