http://www.nbcnews.com/politics/first-read/all-timing-when-will-democrats-try-replace-eric-holder-n212236

http://www.thefiscaltimes.com/Articles/2014/09/26/Holder-s-Late-Resignation-May-Curse-his-Successor

Both links from the Wonkbook. Wonder if Janet Napolitano is actually a viable choice or if she'd duck it because of the pitfalls.