Sneak Peek - Tonight's NIGHTLINE Interview With Newt Gingrich's Ex-Wife

The ABC news division has confirmed that the network will air an exclusive interview with Newt Gingrich's Ex-Wife Marianne Gingrich tonight on NIGHTLINE. The inteview will take place just days before the South Carolina Primary. The interview, by the network's chief investigative correspondent Brian Ross, was filmed this week

As reported in The Hollywood Reporter, sources close to Marianne Gingrich revealed that she has a very negative opinion of her ex-husband and may possibly reveal news which could sideline Gingrich's chances of receiving the GOP nomination. In 2010, Marianne Gingrich gave an interview to Esquire magazine in which she questioned the sincerity of her ex-husband's conversion to Catholicism. The couple's marriage fell apart after 18 years when Gingrich admitted to having an affair with a much younger congressional aide who he later married. 

Gingrich's daughters from his first marriage wrote a letter to ABC News yesterday, imploring the network to reconsider airing the interview. In the contents of the letter they stated: "The failure of a marriage is a terrible and emotional experience for everyone involved. Anyone who has had that experience understands it is a personal tragedy filled with regrets, and sometimes differing memories of events. We will not say anything negative about our father’s ex-wife. He has said before, privately and publicly, that he regrets any pain he may have caused in the past to people he loves."

The family members continued, "ABC News or other campaigns may want to talk about the past, just days before an important primary election. But Newt is going to talk to the people of South Carolina about the future -- about job creation, lower taxes, and about who can defeat Barack Obama by providing the sharpest contrast to his damaging, extreme liberalism. We are confident this is the conversation the people of South Carolina are interested in having. Our father is running for President because of his grandchildren -- so they can inherit the America he loves. To do that, President Obama must be defeated. And as the only candidate in the race, including Obama, who has actually helped balance the national budget, create jobs, reform welfare, and cut taxes and spending, Newt felt compelled to run -- to serve his country and safeguard his grandchildren's future."

To get a first look at tonight's interview airing on ABC's NIGHTLINE, click here