"Did CIA run a covert op against an elected president?"

I haven't been following PlameGate, so I don't know whether this is something that could be true or whether it's part of the defense:
The media version of the CIA leak case is that the White House illegally revealed a CIA employee's identity because her husband, Joseph Wilson, was an administration critic. But former prosecutor Joseph E. diGenova says the real story is that the CIA "launched a covert operation" against the President when it sent Wilson on the mission to Africa to investigate the Iraq-uranium link. DiGenova, a former Independent Counsel who prosecuted several high-profile cases and has extensive experience on Capitol Hill, including as counsel to several Senate committees, is optimistic that Special Prosecutor Patrick Fitzgerald will figure it all out.

DiGenova tells this columnist, "It seems to me somewhat strange, in terms of CIA tradecraft, that if you were really attempting to protect the identity of a covert officer, why would you send her husband overseas on a mission, without a confidentiality agreement, and then allow him when he came back to the United States to write an op-ed piece in the New York Times about it."

That mission, he explained, leads naturally to the questions: Who is this guy? And how did he get this assignment? "That's not the way you protect the identity of a covert officer," he said. "If it is, then [CIA director] Porter Goss is doing the right thing in cleaning house" at the agency.

If the CIA is the real villain in the case, then almost everything we have been told about the scandal by the media is wrong. What's more, it means that the CIA, perhaps the most powerful intelligence agency in the U.S. Government, was deliberately trying to undermine the Bush Administration's Iraq War policy.
Obviously, we don't want the CIA to do such things as that's a threat to the Republic. But, then again, the Bush administration isn't exactly a big friend of America either.