The emails indicate her job had taken a toll on her marriage long before she even became McCain's running mate.
In a Sept. 26, 2007, email to Kris Perry and her husband Todd, titled "Marital Problems," Palin writes: "So speaking of... If we, er, when we get a divorce, does that quell "conflict of interest" accusations about BP?" Her husband was a former BP employee on the North Slope.
It was a joke. People were complaining that Todd worked for BP- I think the divorce rumors were being spread at the same time. The reply from the aide was “VERY funny”.
Besides this was 2007- baby Trig came along 2008 :). Obviously the humor went over the libs heads.