More compelling to the Beltway crowd, Tumulty says, is a bombshell from the current Mrs. Gingrich: "I don't want him to be president and I don't think he should be," Marianne Gingrich told Vanity Fair. "He can't do it without me. I told him if I'm not in agreement, fine, it's easy. I just go on the air the next day and undermine everything." Gingrich has said he'll decide on a presidential run by Dec. 15.