walk like a presidential candidate and talks like a presidential candidate, and just might be a presidential candidate, especially talking about vice president joe biden who has kept democrats waiting for monthsen many say, god love you, joe, but you missed your moment. but biden is saying things directed at the front-runner. jeff zeleny is here with me. a shadowboxing today, vice president biden talking about hillary clinton, obviously, it seemed. >> it did, shadowboxing or perhaps a preview of a new game of the democratic "family feud," whatever you call it, joe biden was eager to remind people today he spent the last seven years a heartbeat away from president obama for a reason and he made it clear he would run on that if he jumps into the democratic primary. >> how are you? >> reporter: joe biden seems to be enjoying himself. >> good to see you. >> reporter: he's not even a candidate yet, but today he was eager to show he's different from that other democrat running for president. first, he doesn't believe