(iraq war) is a blunder without peer in american history and possibly an assault on democracy

I think Richard Cohen is peeved about the war and the way the de facto Administration sold it. An example from his column today (emphasis is mine):

The way things look now, he (Bush) will go down in history as an amiable dunce -- Clark Clifford's scathing and misapplied characterization of Ronald Reagan -- who took his country to war for reasons that did not exist. This is a blunder without peer in American history and possibly an assault on democracy: The people, through their representatives, are supposed to make an informed decision about war. It is incredible to me that Bill Clinton was impeached for lying about sex, but nobody -- that's nobody -- in the entire Bush administration has been fired, not to mention impeached, for this shedding of American blood. Cheney, a man of ugly intolerance for dissent, should have been the first to go. His has been a miserable, dishonest performance -- which he continues to this day.

What he said. Read it, it's pretty strong and there's more like that. I'm guessing Cohen is regretting his pre-invasion support for the war.