He did a rather extensive interview with a New Republic writer, published yesterday, and as he's done throughout his Senate career, he bounces around a lot. Now he's back to palling around with the Democratics and hating on the TEA Party types like Senator Ted Cruz and Rand Paul, among others. He views them as obstructionists, while he, of course, is only there to do important work.
It seems he'd rather hang out with the faux Cherokee Indian, Elizabeth Warren, than work with a new generation of Republicans. As a long-time, card-carrying member of the old Republican establishment, he apparently feels threatened by the upstarts. Likely with good reason.