The day started with Rick Santorum being certified as the winner of the Iowa Caucus.
Then Texas Governor Rick Perry dropped out of the race and tossed his support into the ring of New Gingrich.
Tonight the Final Four will debate on CNN.
But the biggest bombshell could be the interview that ABC News will run tonight at 11:35 EST with Marianne Gingrich, who is the former Speaker of the House's ex-wife.
In her most provocative comments, the ex-Mrs. Gingrich said Newt sought an "open marriage" arrangement so he could have a mistress and a wife.
She said when Gingrich admitted to a six-year affair with a Congressional aide, he asked her if she would share him with the other woman, Callista, who is now married to Gingrich.
"And I just stared at him and he said, 'Callista doesn't care what I do,'" Marianne Gingrich told ABC News. "He wanted an open marriage and I refused."
Marianne described her "shock" at Gingrich's behavior, including how she says she learned he conducted his affair with Callista "in my bedroom in our apartment in Washington."
"He always called me at night," she recalled, "and always ended with 'I love you.' Well, she was listening."
All this happened, she said, during the same time Gingrich condemned President Bill Clinton for his lack of moral leadership.