Transcript for Joe Biden’s fiery exchange with voter on campaign trail
Now to the race for the white house and the confrontation on the campaign trail making headlines between former vice president Joe Biden and a voter at a town hall. Whit Johnson has more in Manchester, New Hampshire. Good morning to you, whit. Reporter: Michael, good morning to you. Biden insists he did not lose his temper in the confrontation but that town hall voter touched a nerve attacking him about his age, his son hunter. The first words out of the former vice president's mouth, you're a damn liar in Iowa working to remain momentum and show vote he he is enough to beat trump. A statement by Kerry overshadowed by this heated exchange. I got a question I want you to answer. We all know trump has been messing around in the Ukraine over there but you on the other hand sent your son over there to get a job and work for a gas company that he had no experience with gas or nothing in order to get access for the president so you're selling access to the president just like he was. You're a Adam liar, man, that's not true and no one has ever said that. I see it on the TV. You see it on the TV. All I do is watch TV. Look, I know you do. I know more than most people and I can get things done. Reporter: The man who wouldn't identify himself to reporters falsely claiming Biden sent his son hunter to Ukraine. No one has said my son has done anything wrong. I didn't say you were doing anything wrong. I said -- You said I set up my son to work in an oil company. Isn't that what you said? Get your words straight, jack. Reporter: Hunter Biden served on the board of a Ukraine gas company while his father was vice president but there's been no evidence of any wrongdoing. The retired farmer calling out the candidate's age. You're as damn old as I am. Firing back too. You want to take my shape let's do push-ups. Let's run. Let's do whatever you want to do. Let's take an ifshths Q. Test. Reporter: President trump's campaign quick to attack. Joe Biden goes berserk. Biden downplaying it. You're losing your temper, aren't you -- I didn't lose my temper. Reporter: Now, there's been mixed reaction to that heated exchange. Some say that he did display toughness and vigor with that answer but needs to have an effective response to a question that will no doubt come up again and again. By the way that farmer says that he would still vote for Biden over trump if he is the nominee. Robin. Okay, whit, thank you.
This transcript has been automatically generated and may not be 100% accurate.