Why Mccain has not exposed Obama's background?

RK

McCain is acting like a gentleman, that does not win political race!
Take off your gloves or you will WIN
"Why is Ayers off-limits to McCain? Why is Wright off-limits?" a caller asked Rush

RUSH: Don't ask me to explain this! Honestly, folks. I know a lot of things, but you're asking me to explain the McCain campaign? ... All I can tell you is that McCain wants to run a campaign that he thinks is honorable, and he just doesn't feel comfortable. You know, he asks people on his campaign speaking for him, not to even mention Obama's middle name: Hussein.