Cain appeared on Neil Boortz today:

Boortz, at the tail end of the interview, asks Cain how he’d do in a debate against Obama: “It would almost be no contest.”

Ticking off ways he could compete with Obama, Boortz says that Cain would be able to talk about the black experience in America.
Cain’s response: “[Obama’s] never been a part of the black experience in America.”