As you may recall, his wife was tragically killed in a car accident right after his election, and Biden was sworn-in from the bed-side of his sons -- who were injured in the crash.
Biden's perseverance was viewed by most of us as heroic -- even though it meant his motherless sons wouldn't see their dad nearly as much. I don't recall a single member of the media saying Joe Biden should have been focusing on his family, rather than becoming a senator.
Yet, Sarah Palin is being second-guessed -- right now -- for essentially making the same type of decision. The only differences, of course, are that ...
1). Palin has a spouse to help
2). Palin is a woman
3). Palin is a conservative
Update: I just saw a clip of Biden on TV saying that the notion that Palin can't be VP and a mom, too, is sexist ...