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McCain also says he wants to provide nothing less than universal health-care coverage, a position that sets him well apart from most other Republicans. But as part of his famous candor, he admits that he is not yet sure just how to do it. That's partly because, as a conservative, he balks at the main conceptual hurdle of the health-care problem, namely that Washington will have to be part of any solution. But all four candidates, even the Republicans, are aiming to end up in Washington, where voters will have sent them to solve the big problems, even maybe to shoot for the moon.
--Reported by Jay Branegan, Jay Carney, John F. Dickerson, Tamala Edwards and Eric Pooley