Former Trump campaign attorney Jenna Ellis has agreed to cooperate with Arizona prosecutors in their 2020 election subversion case against aides to former President Trump and the state’s so-called fake electors.

Ellis previously faced nine felony counts including fraud, forgery and conspiracy, but in exchange for her cooperation, the charges were dismissed.

In a statement, Arizona Attorney General Kris Mayes (D) called the agreement a “significant step forward” in the case.

“I am grateful to Ms. Ellis for her cooperation with our investigation and prosecution,” Mayes said. “Her insights are invaluable and will greatly aid the State in proving its case in court. As I stated when the initial charges were announced, I will not allow American democracy to be undermined — it is far too important. Today’s announcement is a win for the rule of law.”

As part of the deal, Ellis agreed to testify “completely and truthfully at any time and any place,” including at a criminal trial. She also vowed not to “protect any person or entity” through false information or omissions. 

Ex-White House chief of staff Mark Meadows and Rudy Giuliani are among the 17 total defendants with remaining charges; they were indicted in April and have pleaded not guilty. 

Trump himself is not charged in the case but is described as “unindicted co-conspirator 1.”

Ellis’s charges stemmed from her false claims of election fraud and efforts to pressure the Arizona Legislature into overturning the state’s election results in Trump’s favor. 

She was also accused of encouraging then-Vice President Mike Pence to accept slates of fake electors instead of the true electoral votes cast for President Biden. Biden won Arizona by 10,457 votes.

The former Trump campaign lawyer faced charges in Georgia for pushing the fake electors scheme and conspiring to help Trump remain in the White House after losing the 2020 presidential election, too, but later agreed to cooperate with state prosecutors. She pleaded guilty in October to one felony count of aiding and abetting false statements and writings.

In remarks made after changing her plea to guilty in that case, she said through tears that she would have declined to represent Trump after the election if she “knew then what I know now.” 

Ellis’s law license was suspended for three years in Colorado over her role in efforts to overturn the election. 

Prosecutors in Michigan, Wisconsin and Nevada have also filed criminal charges related to the fake electors scheme, though the Nevada case was dismissed in June. State prosecutors have appealed that decision. 

Updated 4:50 p.m.