president. a new cnn poll suggests democrats all but assume that hillary clinton will be the party's standard bearer in 2016. but with joe biden heading to asia sunday at a key moment in u.s./china relations and a quiet support raising campaign now under way for him, some are wondering if biden might have some presidential joe-mentum of his own. brian todd has been looking into that today. anybody who has met vice president biden knows he's not a guy who will rest on his laurels. you get the sense he's running already for 2016? >> he could be. as you mention, he will need momentum, anything he can get to overtake hillary clinton in all these speculative races that we're riunning right now. still, joe biden has enough experience and political skill to bear in this whole thing. we have to take his potential candidacy very seriously. he's a natural handshaker and back slapper, evidenced on inauguration day. that common touch combined with decades of experience in the senate, an impressive portfolio