Supporters reach out to touch Democratic presidential hopeful John Edwards during the last stop of his 36-hour bus tour around Iowa on Wednesday, Jan. 2, 2008, in West Des Moines, Iowa.
Republican presidential hopeful, former Mass. Gov. Mitt Romney, greets local residents during a rally, Wednesday, Jan. 2, 2008, in Cedar Rapids, Iowa, on the last day of presidential candidates' campaigning before the Iowa caucus.
Democratic presidential hopeful Sen. Barack Obama, D-Ill., speaks at a campaign stop Wednesday, Jan. 2, 2008, in Des Moines, Iowa.
A Chris Dodd for President sign is posted next to a highway near Logan, Iowa Wednesday, Jan 2, 2008.
A Ron Paul sign sits in front of grain silos Wednesday, Jan. 2, 2008, near Minden, Iowa.
Republican presidential hopeful, Sen. John McCain, R-Ariz., speaks to supporters during a campaign stop at the Dubuque Jet Center at the Dubuque Regional Airport Wednesday, Jan. 2, 2008, in Dubuque, Iowa, on the last day of presidential candidates' campaigning before the Iowa caucus.
A little girl holds up a sign while waiting for Democratic presidential hopeful, Sen. Hillary Rodham Clinton, at a campaign event in Cedar Rapids, Iowa, Wednesday, Jan. 2, 2008, on the last day of presidential candidates' campaigning before the Iowa caucus.
Democratic presidential hopeful, Sen. Joe Biden, D-Del., speaks as a supporter takes his photograph during a rally at Douma Elementary School in Ottumwa, Iowa, Wednesday, Jan. 2, 2008, on the last day of campaigning before the Iowa caucus.
Audience members listen to Republican presidential hopeful and former Arkansas Gov. Mike Huckabee speaking in Fort Dodge, Iowa, Wednesday, Jan. 2, 2008. Democratic and Republican candidates went all out to encourage supporters to vote for them in the close Iowa caucus.
Republican presidential hopeful Fred Thompson, sits in the back room of the Mason City Elks Club during an interview after making a campaign stop Wednesday, Jan. 2, 2008 in Mason City, Iowa.
Democratic presidential hopeful, New Mexico Gov. Bill Richardson, waits to speak with his wife Barbara in Mason City, Iowa Wednesday, Jan. 2, 2008, on the last day of presidential candidates' campaigning before the Iowa caucus.
Republican Presidential hopeful Rep. Ron Paul, R-Texas, checks his watch prior to being introduced during a campaign event at Des Moines University in Des Moines, Iowa, Thursday, Jan. 3, 2008.
Democratic presidential hopeful Sen. Barack Obama D-Ill., talks to Kelli Schaefer, an undecided voter on caucus day, Thursday, Jan. 3, 2008, at a food court in Des Moines, Iowa.
Mel Schmeiser of Burlington, Iowa, left, waits to shake hands with Republican presidential hopeful and former Arkansas Gov. Mike Huckabee and his wife Janet during a campaign stop Thursday, Jan. 3, 2008, at Pzazz Convention and Event Center in Burlington, Iowa.
Merle Gaber of Dubuque, Iowa, listens to a presentation by Democratic presidential hopeful, Sen. Joe Biden, D-Del., during a rally in Dubuque on the day of the Iowa caucus, Thursday, Jan. 3, 2008.
Volunteer Roberta Allen, from San Jose, Calif., wears American flag contact lenses as she waits for people to sign a list seeing if they are caucusing for Republican Presidential hopeful former Tennessee Sen. Fred Thompson, Thursday, Jan. 3, 2008, during a campaign stop in West Des Moines, Iowa.
Democratic presidential hopeful, Sen. Barack Obama D-Ill., celebrates with his supporters after his victory in the Iowa caucus Thursday, Jan. 3, 2008, in Des Moines, Iowa.
Republican presidential hopeful, former Arkansas Gov. Mike Huckabee, shakes hands with supporters at a victory party in Des Moines, Iowa, Thursday, Jan. 3, 2008, after being declared the winner of the Iowa Caucus.