As his guest hosting gig on CNN draws to a close, CNN's Roland Martin opens up about filling in for Campbell Brown. He sat down for an interview with Julie Menin who hosts "Give and Take" on WNBC's digital channel NY Nonstop. They talked about Monday's New York Post story on CNN's ratings. "Total lie," he calls it. And about other cable hosts - including Glenn Beck calling Beck's show "train wreck television." "You want to see this guy go batty."

• More of the interview here...