Eli Lake, whose been covering this issue for years, reports for the New York Sun:

Mr. McCain's national security adviser, Randy Scheunemann, told The New York Sun, "There is ample documentation that Iran has provided many different forms of support to Sunni extremists, including Al Qaeda as well as Shi'ia extremists in Iraq. It would require a willing suspension of disbelief to deny Iran supports Al Qaeda in Iraq."

Responding to Mr. Scheunemann's remarks, a senior foreign policy adviser to Senator Obama, Susan Rice, yesterday told the Sun, "It's very bizarre." She noted that Mr. McCain had "made the same statement three times in as many days. Surely he must know, as Senator Lieberman reminded him, that Iran is not engaged with Al Qaeda in Iraq. I don't know if he is confused, or is he cynically trying to conflate Al Qaeda and Iran as Cheney and Bush did Al Qaeda and Iraq in 2002 and 2003?"

Ms. Rice stipulated in the interview that she was not saying Iran and Al Qaeda have never worked together, but that "there is no body of evidence to suggest Iran is aiding Al Qaeda in Iraq."

Rice echoes what Brian Katulis of the left-wing Center for American Progress said yesterday, calling the intelligence on this a "gray area." Likewise, Rice won't say that Iran and al Qaeda don't work together, so it's hard to see what all the fuss is about. And whatever relationship exists, Iran isn't going to advertise it. In this gray area, the Obama camp leans one way (assuming our enemies don't collaborate) and the McCain camp leans another (assuming they do). Fact of the matter is that what little evidence exists suggests they do work together--and of course when they don't work together there will be no evidence. If Obama makes it to the White House, he can raise the issue with Ahmadinejad during their summit at Camp David--I'm sure he'll get a straight answer (maybe there really is no al Qaeda, or homosexuality, in Iran).