File this in the 'why is Biden even running for president?' drawer.

Reporter mentions Iowa's economy is booming.

Reporter: "Why should people want to make a change?"

Biden: "Well that's up to them to decide."

Reporter: Well make your case?"

Biden: "I'm not going to." pic.twitter.com/edmWgsDgRK

— Andrew Clark (@AndrewHClark) September 23, 2019