Kemp’s office declined to comment Thursday, but a spokesman referred to a statement from Kemp’s chief of staff, who said at the time that it wasn’t appropriate for voter registration cancellations to be based on water bills.

Kemp also replied in October 2017 to a Democrat's campaign email about voter registration cancellations with a smiling emoji next to the word "us." The campaign email came from Democrat Stacey Evans, who was running for governor at the time and highlighted an AJC article about Georgia's removal of more than 500,000 voter registrations, the largest single cancellation in U.S. history.

Much of the committee’s report recapped Georgia’s elections laws and practices documented by the AJC while Kemp was secretary of state from 2010 to 2018.

During that time, election officials canceled more than 1.4 million inactive voters, closed 214 precincts and put 53,000 voter registration applications in "pending" status because of discrepancies in registration information, the AJC has reported.

The 15,500 documents turned over to the committee also outlined allegations that tens of thousands of votes went missing in the 2018 lieutenant governor's race. The AJC previously obtained those documents through the Georgia Open Records Act.

Some of the 1,400 documents the state withheld from the House Oversight Committee dealt with Kemp’s unsupported accusation, two days before the 2018 election, that the Democratic Party of Georgia attempted to hack voter registration information.

Kemp blamed Democrats after his office was alerted about a potential vulnerability in voter registration information available online.

“The state did not produce any ‘evidence’ to the committee in response to its requests, and the state withheld multiple internal emails on this topic,” the committee’s report states.

The House Oversight Committee has been investigating voting practices in Georgia, Kansas and Texas since March. The committee’s hearing Wednesday featured testimony from civil rights activists and voting rights advocates. The committee plans to continue its investigation.