A remarkable across-the-board consensus seems to be developing among lawyers that King and Spaulding acted improperly in agreeing to defend DOMA, and then backing out when pressured by counterfeit "marriage" advocates. This response should also serve as a warning to those advocates to civilize themselves.
Those supporting Paul Clement and condemning (either implicitly or explicitly) King & Spaulding now include Attorney General Eric Holder, former Attorney General Mike Mukasey, Benjamin Wittes, Clinton Administration Solicitor General Seth Waxman (whose firm is arguing the other side of the DOMA Case), Professor William Jacobsen, the guys over at the Volokh Conspiracy, and NYU Law Professor Stephen Gillers. That is just a sample.
All in all, King and Spaulding's cowardly action is provoking an admirable professional response among America's lawyers. Heaven knows we disagree with most of these lawyers--still, it is good to see, and a proud moment for the legal profession.