Of course, Palin quit to pursue national aspirations as either a candidate (one would presume) or simply a professional speaker/author/pundit. And Florida Governor Charlie Crist, who is running for the Senate (but who I wish really was quitting politics altogether), would see his current term end right around the time he’d take office as Senator if he won.
So this is a little off base.
To be clear, I wish more politicians would quit when they start getting ambitious for bigger and better things. I thought it was a disgrace the way Senator John Kerry clung to his office as a fall-back when he ran for President in 2004, and I also thought that both McCain and Obama should have resigned their Senate seats to run in 2008.
If these people want to pursue higher office or more lucrative employs then great. Do the taxpayers the courtesy of resigning first.
Palin had the integrity to do that (and, of course, she was taking herself out of the cross hairs of Alaska Democrats and their endless stream of baseless and frivolous ethics complaints). Not a lot of other politicians do.