Governor of New York perhaps? I would vomit if she was elected, but it would be her best bet.
As was said before, she is starting to get up there in age in her late 50s or near 60. I realize thats still young for politics, especially "higher level" offices such as Senate, Governor, and President, but I think she probably has enough in the tank to take her until the 2014 mid-terms or the 2016 Presidential elections, if she doesn't not get the White House in 2008. If she somehow wins, in which case I would go into cardiac arrest, then she will be forced to leave Office in January 2017. So, take heart, we may only have to deal with her for another 10 1/2 years!!