The indictment describes how several of the co-defendants, including Kenneth Chesebro, Michael Roman and James Shafer, worked together from Dec. 11, 2020. through Dec. 25, 2020, in several states including Georgia and Arizona, to commit acts “in furtherance of the conspiracy.”

The alleged acts include Shafer reserving a room at the Georgia State Capitol in Fulton County, Georgia to gather "Trump presidential elector nominees," and Chesebro sending emails to Roman regarding Trump presidential elector nominees in other states.

The indictment also describes how the co-conspirators allegedly communicated with the Trump campaign about the Trump electors.

According to the indictment, Rowan instructed an individual associated with the Trump campaign to "distribute information related to the December 14, 2020 meetings of Trump presidential elector nominees in Georgia, Arizona, Michigan, Nevada, New Mexico, Pennsylvania and Wisconsin to other individuals associated with the campaign and co-conspirator 4."

On Dec. 13, 2020, Chesebro sent an email to Giuliani outlining the “multiple strategies for disrupting and delaying the joint session of congress on January 6, 2021,” the indictment says.

The alleged enterprise "falsely accused" Fulton County election worker Ruby Freeman of committing election crimes, the indictment says.

Members of the alleged enterprise traveled out of state "to harass Freeman, intimidate her, and solicit her to falsely confess to election crimes that she did not commit," it says.

The alleged enterprise, including "several" of the defendants, created "false Electoral College documents" and recruited individuals to cast "false Electoral College votes" at the Georgia State Capitol on Dec. 14, 2020, and then transmitted those votes to the president of the U.S. Senate, the U.S. archivist, the Georgia secretary of state, and the chief federal judge in Atlanta, the indictment says.

"The false documents were intended to disrupt and delay the joint session of Congress on January 6, 2021, in order to unlawfully change the outcome of the November 3, 2020, presidential election in favor of Donald Trump,” says the indictment.

In addition to the 19 defendants listed in the indictment, as many as 30 unindicted co-conspirators were involved in the criminal scheme, according to prosecutors.

"The Defendants, as well as others not named as defendants, unlawfully conspired and endeavored to conduct and participate in a criminal enterprise in Fulton County, Georgia, and elsewhere," the indictment says.

The indictment says "several" of the defendants made false statements to Georgia officials, including the secretary of state and Speaker of the House of Representatives, and "corruptly solicited [them] … to violate their oaths to the Georgia Constitution and to the United States Constitution by unlawfully changing the outcomes of the November 3, 2020, presidential election in favor of Donald Trump."

As an upstart chief prosecutor in perhaps the most prestigious legal office in the country, Rudy Giuliani in the mid-1980s made use of a novel way to quell the scourge of New York organized crime -- leveraging a brand new, little-known federal statute called Racketeer Influenced and Corrupt Organizations.

Using RICO, as it's known, Giuliani managed to charge dozens of mobsters with seemingly unrelated crimes, all under the umbrella of one overarching scheme. At the time, it was a revolutionary use of federal law and it later served as a model for state and federal prosecutors around the country.

As U.S. attorney for the Southern District of New York, Giuliani's successful prosecutions of New York's storied crime families made him a media darling and launched Giuliani's political career. But now, four decades later, Giuliani finds himself on the other side of his own legal legacy -- facing Georgia state criminal RICO charges in the Fulton County district attorney's case against his longtime boss, former President Donald Trump, and 18 of his allies.

"This is perfect, perfect irony," said Anthony Cardinale, a veteran defense attorney who represented "Fat Tony" Salerno, the former head of the Genovese crime family, in 1986. "Giuliani is going to be sitting in a courtroom, pray to God ... 40 years after he started bringing these exact types of cases."

To read more about Giuliani's winding road to prosecution, click here.

-ABC News' Lucien Bruggeman