Local CBS affiliate KMOV first reported the alleged blackmail after speaking with the woman's ex-husband, who said that the affair took place in 2015 when he was still married to her.
Now the ex-husband of the woman Greitens had an affair with is disgusted with the governor claiming he took a nude pic of the man's wife to keep her quiet about the affair.
"A few years ago, before Eric was elected governor, there was a time when he was unfaithful in our marriage", the statement read.
The question now is whether this "deeply personal mistake" will deeply damage the bright public career of an up-and-coming Republican star. In the post on Greitens Facebook page, he said "This is and remains an nearly three-year-old private matter with no matter of public interest at stake".
Republican political consultants say that for Greitens to survive politically, the facts must remain as he initially said - that he had an affair but nothing more.
Before his election, he was known for credentials including: former Navy SEAL, former Rhodes scholar and founder of a veterans charity. He's not up for re-election until 2020.
The television report aired after Greitens gave his State of the State address. The husband is recording her without her knowledge and she says, "This can not leave the vehicle". She said on the tape that he invited her downstairs at his home because he wanted to show her "how to do a proper pull-up". "I think they'll be silent and let him implode on his own if that's what happens". "And he used some sort of tape, I don't know what it was, and taped my hands to these rings and then put a blindfold on me".More news: I'm feeling better, El-Zakzaky speaks from incarceration
"He owes nothing to the party, nothing to the institution and has no reason not to take this to the end and fight it", Barklage said.
"I wanted to share with you some statements that are important in light of news you may have seen tonight". A pro-Greitens group, A New Missouri, has also run ads targeting specific Republican lawmakers. Donald Trump's 19-point win in Missouri helped him beat a two term Democratic attorney general who had won the endorsement of the National Rifle Association.
Republican leaders in the Missouri Senate and House released statements urging Greitens to be "forthright" and "accountable for his actions". "It never happened. There was never any violence".
The Legislature adjourned by midday Thursday for the long Martin Luther King Jr. holiday weekend.
Rumors had been swirling all day leading up to the story's publication, with lawmakers, lobbyists and staff anticipating a story about the governor's past could turn up at any moment.
Through his attorney, Greitens, 43, also denied an allegation from the ex-husband that Greitens slapped the woman, saying any accusation of violence is "completely false". An attorney for Greitens says the governor is very confident he will be cleared.
Albert S. Watkins and the law firm of Kodner Watkins, LC represents the former husband of the woman with whom Governor Greitens has admitted having a protracted affair in 2015. It was sent to the same account that Greitens listed on a website he used in the campaign. "We are asking the media and the public to continue respecting her privacy". She said returning to the salon "isn't fair to me, nor anyone close to us" and that she needed to "move forward".More news: Clelin Ferrell & Austin Bryant returning to Clemson
Attorney Al Watkins said Thursday that he does not know if the FBI is conducting a criminal investigation. He also told her that he'd erased the photo, she says on the recording.
Rep. Gina Mitten, a St. Louis Democrat, called the allegations "deeply troubling".
Bennett denied that authorities are involved.
"The claim that this almost three-year-old story has generated or should generate law enforcement interest is completely false", he said.
Sheena Greitens is an assistant professor in the political science department at the University of Missouri and co-director of the university's Institute for Korean Studies. Much of her research focuses on China and North Korea.
"We have a loving marriage and an awesome family; anything beyond that is between us and God".
Greitens was married once before, but it ended in divorce in 2003.More news: Trump's disparaging remarks bring some Miami Haitians to tears
"That's really why the story has interest to us", said Scott Diener, the news director of KMOV.