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The Boston Globe

Politics

Back on trail, candidates resume their salvos

President Obama returned to the campaign trail on Thursday and earned the endorsement of Mayor Michael Bloomberg of New York, an independent former Republican whose background more closely resembles that of GOP challenger Mitt Romney.

The president’s return, after three days spent directing the government’s response to Hurricane Sandy, marked the end of a storm-prompted cease-fire between Obama and Romney, and they went back on the attack in battleground states.

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