Biden hits the campaign trail

President Joe Biden heads to Pennsylvania on Friday as the GOP presidential candidates make their final appeal to voters in Iowa. ABC News’ Alison Kosik has more. SUBSCRIBE to ABC News on YouTube: https://bit.ly/2vZb6yP Latest updates: http://abcnews.go.com/ Watch FULL EPISODES on Hulu: http://abcn.ws/3bzvQQn #biden #election #2024 #politics #abcnews