Jenny Sanford found out her husband was cheating on her from a letter inside his desk. "It was clear instantaneously," she tells us, "that he was having a relationship with a woman he claimed was his eternal love." That woman was Maria Chapur, an Argentine journalist, and the man was Mark Sanford, then governor of South Carolina. In June of 2009, when Gov. Sanford was visiting Chapur in Argentina and missing from the governor's mansion, he infamously claimed he was "hiking the Appalachian trail."

A year later, in 2010, we spoke to Jenny Sanford about why she decided to leave, and how she leaned on her Christian faith to help her through her very public betrayal.

Jenny Sanford, author of "Staying True"