Sweet Senator Caroline?

ABC News's Jonathan Karl writes that the "crazy speculation" about Caroline Kennedy replacing Hillary Clinton as US Senator might not be so crazy.

I don't think it's crazy at all. In fact, back in August, considering the possibility of US Senate races in Massachusetts (which remain, for now, purely theoretical), I threw her right into the mix:

A New Yorker, 50-year-old Caroline would have to take up residence in Massachusetts prior to the election. She has never run for office before. For years, people have thought of her as “her mother’s daughter” — eschewing politics and the limelight.

But that seems to be changing. More than one political observer tells the Phoenix that Caroline’s Times op-ed in January endorsing Obama — the first time she has ever endorsed a presidential candidate other than her uncle — and her subsequent appearance alongside Ted at a high-profile rally, signaled her intent to get off the sidelines and into the action. One source points out that Caroline’s youngest child, Rose Kennedy Schlossberg, is about to turn 20; her desire, like Jackie O’s, to bring up her children in relative privacy is now fulfilled.