During a debate at the Ronald Reagan library, the remaining Republican candidates solemnly invoked the name of the former California governor. They paid much less attention to the post's current occupant, Arnold Schwarzenegger, who sat in the audience. But at one point John McCain coyly complimented his physique. Mr Schwarzenegger beamed: he was planning to throw his weight behind Mr McCain, and with it, perhaps, the greatest prize in the nomination race.
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