By Kristen Holmes and Jason Morris|CNN

Fulton County investigators have an audio recording of a telephone call that former President Donald Trump made to the Georgia House speaker to promote a special session to reverse Democrat Joe Biden's 2020 victory in the state, according to the Atlanta Journal-Constitution.

The Fulton County unique grand jury, which investigated Trump's actions in the state after the 2020 election, heard the recording of Trump's call to David Ralston, according to 5 of the jurors who spoke anonymously to the AJC. A source validated to CNN the presence of the recording, which hasn't been made public.

The recording adds to what's learnt about the pressure campaign by Trump and his allies on Georgia authorities. It's the third audio recording of the previous president's telephone call to Georgia officials that is understood to exist.

The unique grand jury recently concluded its work and recommended numerous indictments, according to the foreperson who has spoken out openly. Now it's up to Fulton County District Attorney Fani Willis to make charging decisions.

Ralston, who died last year, explained his December 2020 call with Trump throughout an interview the following day.

Trump "would like a special session of the Georgia General Assembly," Ralston stated. "He's been clear on that before, and he was clear on that in the telephone call yesterday. You understand I shown him my belief that based upon the understanding I have of Georgia law that it was going to be very much an uphill battle."

According to the Georgia Constitution, not only can the governor assemble a special session, the General Assembly can call itself into an unique session, though that requires the signatures of 3/5 of the Georgia House.

Former US Sen. David Perdue, a strong Trump ally from Georgia, likewise asked for an unique session be convened during a conference in December 2020 at Truist Park, where the Atlanta Braves play. Gov. Brian Kemp, Perdue and previous Sen. Kelly Loeffler, the state's other United States senator at the time, and their aides attended.

Perdue did not right away react to CNN's ask for comment.

And Trump pressed Kemp in late 2020 to convene a special session to overturn Biden's success, and to buy an audit of mail-in tallies. Kemp declined Trump's ask for a special session, and said that he did not have the power to order a separate audit of mail-in tallies.

There is also a recording of Trump's call to a leading detective with the Georgia secretary of state's office in December, 2020, while they were checking out accusations of irregularities with signature-matching in Cobb County, in the Atlanta metropolitan area.

In that call, Trump urged the detective to look for fraud in the 2020 presidential election, telling her that she would be "applauded" for reversing results that favored Biden. Audit results in Cobb County discovered no fraudulent ballots or misbehavior.

The unique grand jury investigation was introduced by the Fulton County district lawyer after audio was revealed of a notorious hour-long phone call in which Trump pressured Georgia Secretary of State Brad Raffensperger to "discover" the precise number of votes needed to overturn Biden's success and suggested that he openly announce that he "recalculated" the election results.

The Fulton County probe expanded beyond the Trump phone calls to include false claims of election scams to state lawmakers, the fake elector plan, efforts by unauthorized individuals to gain access to voting makers in one Georgia county and dangers and harassment against election workers.
The special grand jury satisfied for roughly 7 months in Atlanta and heard statement from 75 witnesses, including a few of Trump's closest advisers from his final weeks in the White House.

Trump, who has actually released his 2024 campaign for the White House, rejects any criminal misdeed. He has declared that Willis, a Democrat, is politically biased, and still regularly promotes the incorrect claim that he actually won the election in Georgia.

Willis recommended in January that her choice on whether to bring charges is "impending.".