First it was Sam Brownback, now it is Mitt Romney. With Bush's approval ratings in the low 30s or high 20s, the war in Iraq escalating, and the whole GOP in danger of getting slaughtered in '08, Mitt Romney is distancing himself from Bush. Both Romney and Brownback see an opportunity to become the "anti-Bush" in the race for the GOP nomination.
With his different views on abortion, Rudy Giuliani, the political transvestite, could also become the "anti-Bush" in '08 among Republicans, but he is wedding himself to the war. John McCain has already done so, although he keeps trying to have it both ways.
Romney and Brownback got the better idea. Start distancing youself from the Iraq War, hope that Hillary is the Dem nominee, and maybe you can avoid the fallout from BB's blunders. It is sure better for them than drinking more Bush Kool-Aid and getting killed.