The joint announcement came yesterday after Missouri Attorney General Josh Hawley levied bombshell accusations of possible crimes involving a donor list from Greitens' veterans charity The Mission Continues.
The governor is also asking for a special prosecutor to be brought in on the case.
On Tuesday, Hawley held a press conference regarding Greiten's use of a nonprofit organization donor list from The Mission Continues in St. Louis without permission.
Greitens was indicted in February on a single felony count of invasion of privacy, charging he took a photo of a woman in a state of undress without her consent and then made it accessible by computer to use as retaliation should she divulge their relationship. During that interview, the host asked Hawley if the governor should resign.
"I will not be resigning the governor's office", he said. "In three weeks, this matter will go to a court of law- where it belongs and where the facts will prove my innocence". AG Hawley's public statements demonstrate that he understands that by calling for Gov. Greitens to resign, he has predetermined the guilt of his own investigative target and his investigation now is clearly compromised.
November 2016: Greitens defeats Democrat Chris Koster to win the gubernatorial election.
Hawley, the attorney general, announced in March that he was investigating the Mission Continues, and subpoenaed the governor in April. They also allege that Circuit Attorney Kim Gardner knew he lied, and that her office has withheld evidence from the defense. Claire McCaskill, whom Hawley is seeking to unseat. In a court filing Wednesday, they said that a criminal investigation of Tisaby, and possibly Gardner, had begun, but both police and Gardner's office said they were unaware of any investigation.
Greitens has denied the allegations and called the report "incomplete".
The charity said in a statement that it is "fully cooperating" with Hawley's office and does not engage in political activities, adding that it did not promote Greitens' political career.
Senate President Pro Tem Ron Richard, House Speaker Todd Richardson and other House leaders called on Greitens to step down Tuesday after the state's attorney general found evidence that Greitens may have committed a felony in his use of a charity donor list for political purposes.