Scramble on for Iowa caucus voters

Republicans were predicting a bigger turnout than 2008 in the Iowa caucuses as candidates scrambled across the state in a final effort to squeeze out those extra, potentially vital votes.

Republicans were predicting a bigger turnout than 2008 in the Iowa caucuses as candidates scrambled across the state in a final effort to squeeze out those extra, potentially vital votes.

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But most of the work that matters is now in the hands of volunteers, essential to ensure that supporters turn out for the caucuses.

Ron Paul, Rick Perry and Rick Santorum claim to have strong volunteer networks in place to get the vote out. Other candidates have kept such campaign details secret.

Polls suggest the candidates go into the final phase with the outcome apparently in a dead heat, with the eventual winner one of three: Mitt Romney, Paul or Santorum, who is enjoying a final surge. - GNS