try. >> you can handle it but we want you back healthy. only eat a little bit on a fried stick. >> reporter: i've learned that rule. once you start, you can't stop. i'm waiting for the last day. >> all right. kelly o'donnell, thanks very much in des moines. and while the official candidates are stumping in iowa, buzz still surrounds vice president joe biden. and whether or not he'll decide to run. sources tell politico the vice president will meet with his closest circle of advisers before making a final call. he is scheduled to attend a military memorial service for the sailor and four marines killed in chattanooga last month. joining me from martha's vineyard is ron allen. i know you're there covering the president. i'm going to ask you about that in a minute. first, what can you tell us about the vice president's vacation in south carolina and why that might be key to his decision? >> reporter: well, he has a lot of support in south carolina. he vacations there a lot and some of his people urging him to run, we believe, are in that