Former S.C. First Lady Jenny Sanford blasted ex-U.S. Speaker Newt Gingrich on Thursday as an unacceptable choice for the Republican presidential nomination – both ideologically and individually.

Sanford made her remarks in response to allegations from Gingrich’s second wife, Marianne Gingrich, regarding Gingrich’s suggestion that they have an “open marriage.”

“It does call into question his character certainly on the personal side and as a voter, I encourage people to look at both sides,” Sanford said during an appearance on MSNBC’s Hardball. “If you’re going to overcome somebody’s moral failings or infidelities, you also have to look at where they stand ideologically and how much does their rhetoric match their reality. In my mind, Gingrich falls short on both fronts so he wouldn’t get my vote.”

According to Marianne Gingrich, the former U.S. Speaker encouraged the “open marriage” arrangement and said that his mistress (and now third wife), Callista Gingrich, was on board with the idea.

Gingrich says the “open marriage” allegation is false. In fact during a debate in Charleston, S.C. on Thursday evening he ripped the news media for publishing the allegation.

“I am tired of elite media protecting Barack Obama by attacking Republicans,” Gingrich said, to huge applause.

Sanford divorced her husband, former S.C. Gov. Mark Sanford, not long after he acknowledged having an extended extramarital affair with his Latin  lover Maria Belen Chapur in June of 2009. She later wrote a tell-all book about her experiences.