The calls have begun for Attorney General Eric H. Holder Jr.'s resignation. Potential Republican presidential candidates Newt Gingrich and Minnesota Gov. Tim Pawlenty both took that position last weekend in response to last week's embarrassing result in the trial of Guantanamo terrorist detainee Ahmed Khalfan Ghailiani. Mr. Gingrich and Mr. Pawlenty won't be the only prominent politicos reaching the conclusion that Mr. Holder is unfit for the office he holds.