A National Enquirer story exposing previous affairs on both sides led to a deterioration of their marriage and the stress from that led to Palin's resignation as governor of Alaska.
The Palins were noticeably not speaking to each other at last Sunday's resignation speech in Fairbanks. Sarah ditched Todd (MSNBC) right after the speech and left without him. Sarah removed her wedding ring a couple of weeks ago.
Sarah has recently purchased land in Montana and is considering moving the family there. Sarah Palin is originally from Idaho.
Alaska Report notes that it was the first site to report that Sarah Palin was running for Governor, and the first site to report that she had been chosen as John McCain's Vice Presidential running mate.