Caucus Day

 Jan. 3, 2012 - Johnston, Iowa, U.S - Republican presidential candidate RICK SANTORUM exits the stage after speaking to supporters during his Caucus night event at The Stoney Creek Inn. (Credit Image: © Andrew A. Nelles/ZUMAPRESS.com)

 Jan. 3, 2012 - Johnston, Iowa, U.S - Republican presidential candidate RICK SANTORUM speaks to supporters during his Caucus night event at The Stoney Creek Inn. (Credit Image: © Andrew A. Nelles/ZUMAPRESS.com)

 Jan. 3, 2012 - Johnston, Iowa, U.S - Republican presidential candidate RICK SANTORUM speaks to supporters during his Caucus night event at The Stoney Creek Inn. (Credit Image: © Andrew A. Nelles/ZUMAPRESS.com)

 Jan. 3, 2012 - Johnston, Iowa, U.S - Zoey McCarty, 5, of Grapevine, Texas, holds a sign during Republican presidential candidate Rick Santorum's Caucus night event at The Stoney Creek Inn. (Credit Image: © Andrew A. Nelles/ZUMAPRESS.com)

 Jan. 3, 2012 - West Des Moines, Iowa, U.S - Republican presidential candidate RON PAUL speaks during the ''Rock the Caucus'' event at Valley High School. Republican presidential candidates Michele Bachmann, Ron Paul, and Rick Santorum spoke to high school students during the program. (Credit Image: © Andrew A. Nelles/ZUMAPRESS.com)

 Jan. 3, 2012 - West Des Moines, Iowa, U.S - Republican presidential candidate MICHELE BACHMANN holds up an iPhone while speaking during the ''Rock the Caucus'' event at Valley High School. Republican presidential candidates Michele Bachmann, Ron Paul, and Rick Santorum spoke to high school students during the program. (Credit Image: © Andrew A. Nelles/ZUMAPRESS.com)

  Jan. 3, 2012 - West Des Moines, Iowa, U.S - Republican presidential candidate RON PAUL exits after the ''Rock the Caucus'' event at Valley High School. Republican presidential candidates Michele Bachmann, Ron Paul, and Rick Santorum spoke to high school students during the program. (Credit Image: © Andrew A. Nelles/ZUMAPRESS.com)

Jan. 3, 2012 - West Des Moines, Iowa, U.S - Republican presidential candidate RICK SANTORUM arrives at the ''Rock the Caucus'' event at Valley High School. Republican presidential candidates Michele Bachmann, Ron Paul, and Rick Santorum spoke to high school students during the program. (Credit Image: © Andrew A. Nelles/ZUMAPRESS.com)