In a Paradise Valley shopping mall, Martin Dunleavy takes a break from the scorching Arizona sun. He is wearing a cap emblazoned with an eagle and an American flag, and describes himself as somewhat conservative. He adores Sarah Palin, whom he describes as "every man's woman". How about John McCain, Arizona 's senior senator and the state's first plausible presidential candidate since Barry Gold-water in 1964? Mr Dunleavy shakes his head: "You just can't trust McCain."rnNobody besides a few excitable Democrats believes John McCain will lose Arizona. Presidential candidates nearly always carry their home states. But Mr McCain is less popular at home than one might expect. On February 5th he won less than half of the vote in Arizona's Republican primary. A state poll conducted two weeks ago put him seven points ahead of Barack Obama. It is hardly an overwhelming lead in a state that has voted for a Democratic president only once since 1948.
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