Georgia grand jury investigating Trump election interference subpoenas Sen. Lindsey Graham, Rudy Giuliani

A Georgia special grand jury on Tuesday issued subpoenas demanding testimony from Republican U.S. Sen. Lindsey Graham of South Carolina and the attorney Rudy Giuliani as part of an investigation of possible criminal interference in that state’s 2020 election by former President Donald Trump.

Also subpoenaed were members of Trump’s campaign legal team in addition to Giuliani, who led their effort to overturn the election victories of President Joe Biden in several swing states, including Georgia.

Fulton County Superior Court Judge Robert McBurney signed off on the subpoenas issued by the grand jury, which is meeting in Atlanta under his oversight. McBurney is required to authorize subpoenas issued to non-residents of Georgia.

The subpoenas were first reported by The Atlanta Journal-Constitution.

CNBC has requested comment on the report from Graham, who was a close ally of Trump.

Fulton County’s top prosecutor already was known to be eyeing a November 2020 phone call Graham had with Georgia Secretary of State Brad Raffensperger after the election in that state.

The subpoena issued to Graham said he made at least two calls to Raffensperger and his staff about “reexamining certain absentee ballots cast in Georgia in order to explore the possibility of a more favorable outcome for former President Donald Trump.”

A copy of the subpoena to Giuliani notes that he appeared before the Georgia state Senate on Dec. 3, 2020, and provided testimony, witnesses and documentary evidence “purporting to demonstrate the existence of election fraud in multiple Georgia counties.”

“Despite [lack of evidence], the Witness made additional statements, both to the public and in subsequent legislative hearings, claiming widespread voter fraud in Georgia during the November 2020 election and using the now-debunked State Farm Video in support of those statements,” the subpoena said.

“There is evidence that the Witness’s appearance and testimony at the hearing was part of a multi-state, coordinated plan by the Trump Campaign to influence the results of the November 2020 election in Georgia and elsewhere,” the document said.

Robert Costello, an attorney representing Giuliani, told CNBC “We don’t know anything about a subpoena.”

“We have not received any subpoena,” Costello said.

Asked how he and Giuliani would respond, Costello replied: “We’ll decide that if and when it comes to pass.”

The other Trump-allied lawyers who were issued subpoenas were John Eastman, Cleta Mitchell, Kenneth Chesbro and Jenna Ellis. Also issued a subpoena was the podcast host Jacki Pick Deason, who is also an attorney.

The subpoenas issued Tuesday say the witnesses must be in attendance for a testimony between July 12 and Aug. 31.

The grand jury was impaneled in Atlanta in early May at the request of Fulton County District Attorney Fani Willis, who is overseeing the investigation. The grand jury began hearing testimony in early June, after Georgia’s primary elections.

Willis, in seeking the formation of the grand jury, told a judge in January that she had received information indicating a reasonable probability” that Georgia’s election “was subject to possible criminal disruptions.”

Willis said that information included reports that people “associated with these disruptions” contacted Raffensperger, Georgia’s attorney general, and the U.S Attorney for the Northern District of Georgia.

The U.S. Attorney, Byung “BJay” Pak, abruptly resigned on Jan. 4, 2021, in a surprise move.

Two days earlier, Trump in a phone call that occurred while he was still president, urged Georgia Secretary of State Brad Raffensperger to “find” him enough votes to overturn Biden’s win.

“All I want to do is this: I just want to find 11,780 votes,” Trump told Raffensperger.

That call occurred four days before the U.S. Congress began meeting in a joint session to confirm the Electoral College victory of Biden.