>> i probably will go for mayor pete. there's just so much to be said for being able to hit the ground running on day one and it's going to be a terrible task. >> reporter: while he's trailing buttigieg in repeat poll, biden is showing skills from a lifetime in politics also come in handy. to people of all ages. >> can i go ahead? >> got it. oka okay. >> that may be the most intelligent thing you hear all night. >> reporter: he lacks the charisma of buttigieg. in this moment, seeing him up close, she changed her mind. >> i made that comment he's a little old. i'm in good shape. he looks like he's in dynamic shape. >> reporter: so you have a decision facing you. >> i have a terrific decision facing me. and it won't be made lightly. >> reporter: for these voters, at least, looking for a moderate candidate, they're legitimately torn over buttigieg's excitement