Or as Patterico dubs it, "This is the Dawning of the Age of Inquirious".

Mary Katharine Ham writes, "Put your head between your knees, and kiss your next two years goodbye" as it's Subpoeana Showdown time in Washington:

Dean says Bush is itchin' for a fight, and this will all make the Congress look bad, since they'll be abandoning the war and other pressing matters for a witch-hunt. First, kudos to Bush for getting the word "witch-hunt" in there. It made the headlines and colored the issue his way for at least a news cycle.

Second, I'm not sure dragging this out makes Democrats look that bad. The media will continue to give them a pass, the American public won't know much except that they're tired of hearing about the varying definitions of "executive privilege, and it will blame both Congress and the president for that. Unfortunately for Bush, there have been too many complicated scandals (some legit, most not) pinned on him successfully, partially due to bad damage control at the White House, to suddenly convince people this is just a partisan witch-hunt, I think. And, also unfortunately for Bush, he earned the cronyism charges to some extent with the Brownie and Miers fiascoes, so that's hard to escape as well.