STARVED for attention after a dismal stint as President Bush's Envi ronmental Protection Administrator — which itself followed a mediocre six years as governor of New Jersey — Christine Todd Whitman has penned a manifesto to radically remake the Republican Party and send it hurtling leftward. Predictably, the national press can't get enough of it: Newsweek featured a lengthy excerpt from the still-unpublished book, presumptiously titled, "It's My Party, Too: The Battle for the Heart of the GOP and the Future of America." Just as predictably, conservative Republicans — who don't think the future of their country, let alone their...