Former White House Press Secretary Scott McClellan has been writing a book about his term in the administration. This morning his publisher released a small nugget from the book in which McClellan reveals he passed along false information on behalf of the admin in the Valerie Plame CIA leak case.

The most powerful leader in the world had called upon me to speak on his behalf and help restore credibility he lost amid the failure to find weapons of mass destruction in Iraq. So I stood at the White house briefing room podium in front of the glare of the klieg lights for the better part of two weeks and publicly exonerated two of the senior-most aides in the White House: Karl Rove and Scooter Libby.

There was one problem. It was not true.

I had unknowingly passed along false information. And five of the highest ranking officials in the administration were involved in my doing so: Rove, Libby, the vice President, the President’s chief of staff, and the president himself.

So far only one Republican, Mike Huckabee, has spoken out about the revelation to MSNBC’s program Hardball. He said:

“It’s stunning. It’s one of those moments where I’m glad to not be a Washington insider…they are serious allegations but we don’t know whether they’re true…they deserve to be thoroughly investigated and the truth brought to the American people.”

Meanwhile Sen. Chris Dodd on the Democratic side has called for an investigation, he was the first to release a statement on the subject while Gov. Bill Richardson said “It is a low point in our history when the leader of the free world fights to deceive the American public.”