The Speechwriter: A Brief Education in Politics by Barton Swaim:
Over the next few hours, as colleagues gathered in the press office to express a variety of opinions about what had happened, I kept quiet and gathered the essential facts. He had been in Buenos Aires, not on the Appalachian Trail. His mistress was named Maria. A reporter with The State had gotten a tip that he was on a flight from Buenos Aires to Atlanta, and she’d confronted him as he stepped into the terminal. The first lady had known about it for some time and fiercely disapproved. He’d said in the press conference that he’d spent the “last five days crying in Argentina,” which we all agreed was an unfortunate way of putting it.
He was not resigning, not immediately anyhow.