EDIT: MSNBC chimes in:
http://firstread.msnbc.msn.com/archive/2008/01/25/609835.aspx
I've thought a lot about this, because at first I was freaked out like everyone else and was convinced Romney had answers being fed to him. But then, when you think about it, it's clear what happened.
Russert basically asked "Will you do what Reagan did?" but ended his question. The point of his question was, obviously, will you raise taxes like Reagan did?
When somebody, maybe Williams, maybe a producer, heard him finish the question without including the main point, they whispered, "He raised taxes."
Mitt answered back right away, "I won't raise taxes...." Whether Mitt heard the whisper or just knew what Russert was getting at is conjecture.
But then Russert went on to rephrase the question, including the tax part. MSNBC noted it and mentioned it in their live blog, but obviously once somebody told them it was their own network trying to help their own moderator, they pulled it, only making the conspiracy seem that much more nefarious. But it's pretty obvious this is the deal. In hindsight they should have just said "Oh, somebody needed to help Tim out, haha."
Sorry, I would have *loved* to have had this crazy earpiece mic scandal, but it's pretty clear somebody felt Russert needed to be more clear in the intention of his question.
Watch the youtube and you'll see what I mean:
http://www.youtube.com/watch?v=jP0vewX-ES0