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The Boston Globe

Nation

GOP candidates make last push for Iowa voters

CLIVE, Iowa — An unusually volatile Iowa caucus campaign, in which nearly every candidate has at some point led in polls, comes to an end today as voters decide who will win the opinion-shaping first vote of 2012.

Six of the Republican presidential candidates yesterday fanned out across the state in a day of politicking as they sought to bolster their campaigns — or prevent them from ending with defeat in the heartland.

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