DES MOINES, Iowa — Republican presidential candidates are largely shifting from persuading voters to mobilizing them for Tuesday's caucuses.
None has the extensive get-out-the-vote network that helped former Arkansas Gov. Mike Huckabee win four years ago. But Mitt Romney and Ron Paul have strengthened the organizations they had in place for their failed 2008 campaigns.
The cash-strapped others, including Rick Santorum, have more modest efforts. And they are largely relying on momentum to encourage their supporters to turn out to caucus on what could be a chilly night.
Volunteer armies are already knocking on doors and making countless phone calls to get Iowans to the community meetings where they will take the first step toward picking a president.
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