NBC NEWS POLITICS: Former Arizona attorney general failed to release report disproving election fraud claims.

 Mark Brnovich did not release a summary from September that made it clear accusers "did not provide any evidence to support their allegations" before he left office.

By Zoë Richards

Former Arizona Attorney General Mark Brnovich did not release to the public findings from his office that showed a series of 2020 election fraud claims were not backed up by evidence, according to documents released Wednesday by his successor.

Attorney General Kris Mayes, a Democrat who took office last month, released the documents linked to the investigation into the handling of the election in the state.

Agents from the office of Brnovich, a Republican, had spent over 10,000 hours looking into potential voting irregularities and allegations of illegal voting, Mayes' office said in a news release. A September summary prepared by the attorney general's Special Investigations Section showed it had not turned up evidence that backed up the claims.

"In each instance and in each matter, the aforementioned parties did not provide any evidence to support their allegations," the previously unreleased summary said. "The information that was provided was speculative in many instances and when investigated by our agents and support staff, was found to be inaccurate."

According to the summary, the agents looked over 638 complaints, which led to 430 investigations into information provided to agents that was "speculative in many instances" and that when investigated was "found to be inaccurate." Only 22 cases were ultimately submitted for prosecutorial review, and at the time of the report, two indictments were obtained stemming from ballot harvesting.

Elected officials who had made public statements alleging voter fraud "did not repeat or make such assertions when questioned by our agents," the summary said.

As he was running for what ended up being a failed bid for the GOP nomination for the Senate, Brnovich issued an interim report in April addressed to then-Senate President Karen Fann, raising concerns about some voting procedures.

Although that report did not find mass fraud or conspiracy in the 2020 election, it outlined his office’s concerns with “serious vulnerabilities” involving certain procedures during the campaign, including the signature verification process and the transportation of ballots from drop box locations.