How often should you give a politician the benefit of the doubt-take what he says at face value, trust in the sincerity of his motives, make allowances for the baffling complexities of his predicament? Never, says the jaded half of Lexington's brain. Sometimes, answers the half that still likes words such as hope and change and has a soft spot for Barack Obama. The president brings out this reaction in a lot of people. Polls show that even among voters who loathe his policies a great many continue to admire the qualities of the man himself.
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