On to South Carolina

Republican presidential hopeful and former Massachusetts Gov. Mitt Romney hugs a supporter at a national fund raiser call day in Boston, Wednesday, Jan. 9, 2008. (AP Photo/LM Otero) Republican presidential hopeful and former Massachusetts Gov. Mitt Romney talks to reporters during a national fund raiser call day in Boston, Mass., Wednesday, Jan. 9, 2008. (AP Photo/LM Otero)
Roger Sherrill,left and Patrick Beatty, center, both of Charlotte,N.C. react as they listen to Republican presidential hopeful former Sen. Fred Thompson, R-Tenn. speak during a local talk radio show at The Guignard Diner Wednesday, Jan. 9, 2008, in Sumter, S.C. Thompson plans to visit five cities on his second day of his bus tour through South Carolina. (AP Photo/Mary Ann Chastain) Republican Presidential hopeful former Sen. Fred Thompson, R-Tenn.center with his wife Jeri, right, signs a paper as they stop to meet people on Main Street in Camden, S.C., Tuesday, Jan. 8, 2008, as New Hampshire voters turn out in large numbers for the first 2008 campaign primary. (AP Photo/Mary Ann Chastain)
A woman passes by a television showing Barak Obama speaking at a New Hampshire presidential primary rally at a Tokyo electronics store Wednesday, Jan. 9, 2008. Hillary Rodham Clinton won New Hampshire's Democratic primary Tuesday night, Jan. 8, 2008, in a startling upset, defeating Obama and resurrecting her bid for the White House. The Japanese on the screen reads "Hillary vs. Obama, the 2nd match is a very tight battle." (AP Photo/Shizuo Kambayashi) Mike Smith from Inman, S.C., holds his 19-month-old daughter Mia as she applaudes durung a campaign event for Republican presidential hopefu,l former Arkansas Gov. Mike Huckabee, in Spartanburg, S.C., Wednesday, Jan. 9, 2008. (AP Photo/Alex Brandon) Republican Presidential hopeful, former Arkansas Gov. Mike Huckabee, right, accompanied by his with wife Janet, shows a guitar that the volunteers signed and gave him, prior to boarding a plane in Manchester, N.H., Wednesday, Jan. 9, 2008, en route to South Carolina after the New Hampshire Presidential Primary. (AP Photo/Alex Brandon)
Republican Presidential hopeful, Sen. John McCain, R-Ariz., second from left, and his wife Cindy, second from right, shares a laugh with Communications Director Jill Hazelbaker, left, and Traveling Press Secretary Brooke Buchanan, right, Wednesday, Jan. 9, 2008, on his campaign plane en route to Grand Rapids, Mich., following his New Hampshire Republican Presidential Primary victory. (AP Photo/Charles Dharapak) Supporters cheer Republican presidential candidate Sen. John McCain, D-Ariz., as he arrives at a rally in Grand Rapids, Mich., following his New Hampshire primary election victory, Wednesday, Jan. 9, 2008. (AP Photo/Charles Dharapak)
Sen. John McCain, R-Ariz., speaks at a rally in Grand Rapids, Mich., following his New Hampshire primary election victory, Wednesday, Jan. 9, 2008. (AP Photo/Charles Dharapak) Members of the Culinary Workers Union cheer as they announce the endorsement of Presidential candidate Barack Obama during a news conference at the Culinary Workers Union in Las Vegas on Wednesday, Jan. 9. 2008. Obama has won the support of the 60,000-member Culinary Workers Union in Nevada, a major coup for the Democrat that could boost his candidacy against Hillary Rodham Clinton in the party's major nominating contest. (AP Photo/Jae C. Hong)
Democratic Presidential hopeful, former North Carolina Sen. John Edwards greets people following a campaign stop on the campus of Clemson University, in Clemson, S.C., Wednesday, Jan. 9, 2008. (AP Photo/Steven Senne)
Democratic Presidential hopeful, former North Carolina Sen. John Edwards addresses a crowd on the campus of Clemson University, in Clemson, S.C., Wednesday, Jan. 9, 2008. (AP Photo/Steven Senne) Republican presidential hopeful, former New York City Mayor Rudy Giuliani, greets supporters at his arrival at the Melbourne International Airport in Melbourne, Fla., Wednesday, Jan. 9, 2008. (AP Photo/John Raoux)
Republican presidential hopeful, former New York City Mayor Rudy Giuliani, signs autographs for supporters at the Melbourne International Airport in Melbourne, Fla., Wednesday, Jan. 9, 2008. (AP Photo/John Raoux)
Christian Spiegel, 12, pins on a button supporting a Barack Obama, portrayed as Superman, named "Superbama", while in waiting in line for an Obama event in Jersey City, N.J., Wednesday, Jan. 9, 2008. (AP Photo/Seth Wenig)
Republican presidential hopeful former Massachusetts Gov. Mitt Romney and his wife Ann Romney sit aboard the campaign charter plane en route to Grand Rapids, Mich., Wednesday, Jan. 9, 2008. (AP Photo/L.M. Otero)
Republican presidential hopeful and former Arkansas Gov. Mike Huckabee, center, and his wife Janet Huckabee left, tour the Carolina Pregnancy Center with center director Alexia Newman in Spartanburg, S.C., Wednesday, Jan. 9, 2008.(AP Photo/Alex Brandon) Democratic presidential hopeful, New Mexico Gov. Bill Richardson, speaks to supporters as state political advisors, George Bruno, left, and former mayor Bob Baines listen with supporters in Manchester, N.H., Tuesday, Jan. 8, 2008. Richardson ended his campaign for the presidency Wednesday after twin fourth-place finishes that showed his impressive credentials could not compete with his rivals' star power. (AP Photo/Jim Cole) Supporters greet Democratic presidential hopeful, Sen. Barack Obama, D-Ill., as he arrives at St. Peter's College in Jersey City, N.J., for a rally Wednesday, Jan. 9, 2008. (AP Photo/Mel Evans)
Republican presidential hopeful former Massachusetts Gov. Mitt Romney posses for a photo with the flight crew of his campaign charter plane after arriving at Myrtle Beach, S.C., Wednesday, Jan. 9, 2008. (AP Photo/LM Otero)
Mark Mason, with Team Sandtastic, of Sarasota, Fla., works on a sand sculpture of the candidates participating in Thursday night's Republican debate in Myrtle Beach, S.C., Wednesday, Jan. 9, 2008. From left are likenesses of the Republican Presidential hopefuls, former Sen. Fred Thompson, R-Tenn., former Mass. Gov. Mitt Romney, former New York City Mayor Rudy Giuliani, former Arkansas Gov. Mike Huckabee, Sen. John McCain, R-Ariz., and Rep. Ron Paul, R-Texas. (AP Photo/Gerry Broome)
Artists with Team Sandtastic of Sarasota, Fla., work on a sand sculpture Wednesday, Jan. 9, 2008. of Republican presidential hopefuls participating in Republican debate in Myrtle Beach, S.C., Thursday. From left, Fred Thompson, Mitt Romney, Rudy Giuliani, Mike Huckabee, John McCain, and Ron Paul. (AP Photo/Gerry Broome)
Visitors observe a sand sculpture depicting Republican presidential hopefuls are seen through a bus window outside of tonight's Republican debate site in Myrtle Beach, S.C., Thursday, Jan. 10, 2008. From left to right: former Sen. Fred Thompson, R-Tenn.; former Massachusetts Gov. Mitt Romney; former New York City Mayor Rudy Giuliani; former Arkansas Gov. Mike Huckabee; Sen. John McCain, R-Ariz., and Rep. Ron Paul, R-Texas. (AP Photo/Charles Dharapak)
Republican presidential candidate, Sen. John McCain, R-Ariz., talks to supporters at Tommy's Ham House during a campaign in Greenville, S.C., Thursday, Jan. 10, 2008. (AP Photo/Patrick Collard) Democratic presidential hopeful Sen. Hillary Rodham Clinton, D-N.Y. speaks to the Santana family in their home as she canvasses a neighborhood in Las Vegas, Nev., Thursday, Jan. 10, 2008. From left is Gilberto Santana, his wife Elizabeth with their son Gilberto Jr., 2, and daughter Xitlali, 4. (AP Photo/Elise Amendola) Republican presidential hopefuls, from left, former Massachusetts Gov. Mitt Romney, Sen. John McCain, R-Ariz., and former Arkansas Gov. Mike Huckabee, stand before the crowd prior to a Republican debate on FOX News Channel in Myrtle Beach, S.C., Thursday, Jan. 10, 2008. (AP Photo/Mary Ann Chastain) Republican presidential hopeful Sen. John McCain, R-Ariz., is kissed by an unidentified supporter at a campaign event at Applewood House of Pancakes in Pawley's Island, S.C., Friday, Jan. 11, 2008. (AP Photo/Charles Dharapak) Brothers Cole and Ryan Miller hold up teacher's notes signed by Republican presidential hopeful Sen. John McCain, R-Ariz., since they missed school to attend McCain's campaign event at Applewood House of Pancakes in Pawley's Island, S.C., Friday, Jan. 11, 2008. (AP Photo/Charles Dharapak) Republican presidential hopeful former Massachusetts Gov. Mitt Romney laughs with his wife Ann on a jet in Myrtle Beach, S.C., Friday, Jan. 11, 2008. (AP Photo/LM Otero) Republican presidential hopefuls, former Arkansas Gov. Mike Huckabee. left, shakes hands with Rep. Ron Paul, R-Texas, after a Republican presidential debate on FOX News Channel in Myrtle Beach, S.C. Thursday, Jan. 10, 2008.(AP Photo/Alex Brandon) Presidential hopeful former Gov. Mike Huckabee R-Ark., boards his plane in Myrtle Beach, S.C., Friday, Jan. 11, 2008. (AP Photo/Alex Brandon) Democratic presidential hopeful former Sen. John Edwards, D-N.C., left, uses a rag to clean cans of food in preparation for distribution during a campaign stop at the Lowcountry Food Bank, in Charleston, S.C., Thursday, Jan. 10, 2008. Volunteer at the food bank Marilyn Armstrong appears top right. (AP Photo/Steven Senne) Republican presidential hopeful former Massachusetts Gov. Mitt Romney posses for a photo with students during a campaign stop at Grand Blanc High School in Grand Blanc, Mich., Monday, Jan. 14, 2008. (AP Photo/LM Otero)
Republican presidential hopeful former Massachusetts Gov. Mitt Romney speaks in the gym during a campaign stop at Grand Blanc High School in Grand Blanc, Mich., Monday, Jan. 14, 2008. (AP Photo/LM Otero)
Republican presidential hopeful, Sen. John McCain, R-Ariz., speaks at a campaign rally at Kalamazoo Christian High School in Kalamazoo, Mich., Monday, Jan. 14, 2008. (AP Photo/Charles Dharapak)
Republican presidential hopeful, Sen. John McCain, R-Ariz., greets supporters at a campaign rally at Kalamazoo Christian High School in Kalamazoo, Mich., Monday, Jan. 14, 2008. (AP Photo/Charles Dharapak)
Democratic presidential hopeful, former Sen. John Edwards, D-N.C., appears reflected in a mirror as he is greeted by a crowd during a campaign stop at Roger's Bar-B-Que, in Florence, S.C., Sunday, Jan. 13, 2008. (AP Photo/Steven Senne)
Democratic presidential hopeful, former Sen. John Edwards, D-N.C., center top, sits in a pew near the front of Mount Zion Baptist Church, in Sumter, S.C., before the start of services, Sunday, Jan. 13, 2008. Woman at right is unidentified. (AP Photo/Steven Senne)
Democratic presidential hopeful, Sen. Hillary Rodham Clinton, D-N.Y. laughs during a roundtable discussion campaign event at Mo Mo's Bistro in Columbia, S.C., Sunday, Jan. 13, 2008. (AP Photo/Elise Amendola)
Democratic presidential hopeful, Sen. Hillary Rodham Clinton, D-N.Y., laughs during a roundtable discussion campaign event at Mo Mo's Bistro in Columbia, S.C., Sunday, Jan. 13, 2008. (AP Photo/Elise Amendola)
Democratic presidential hopeful Sen. Barack Obama, D-Ill., left, greets supporters at a town hall meeting held at Rosemary Clarke Middle School in Pahrump, Nev., Sunday, Jan. 13, 2008. (AP Photo/Jae C. Hong)
Democratic presidential hopeful Sen. Barack Obama pauses for a moment while speaking during a town hall meeting at Rosemary Clarke Middle School in Pahrump, Nev., Sunday, Jan. 13, 2008. (AP Photo/Jae C. Hong)
Republican presidential candidate, former New York City Mayor Rudy Giuliani, signs autographs during a campaign stop in Coconut Grove, Fla. Sunday, Jan. 13, 2008. (AP Photo/J. Pat Carter)
Rebekah Carpenter, 1, looks around as Republican presidential hopeful former Arkansas Governor Mike Huckabee speaks at a campaign stop in Augusta, Mich. Monday, Jan. 14, 2008.(AP Photo/Alex Brandon)
Janet Huckabee, wife of Republican presidential hopeful former Arkansas Governor Mike Huckabee, hands $200. in cash back to an aid that the Governor accepted from John Kruizenga while he was shaking hands at a campaign stop in Augusta, Mich. Monday, Jan. 14, 2008.(AP Photo/Alex Brandon)
Republican presidential hopeful former Arkansas Governor Mike Huckabee right, accepts $200. in cash from John Kruizenga center, and a book about American POW's as he shakes hands at a campaign stop in Augusta, Mich. Monday, Jan. 14, 2008.(AP Photo/Alex Brandon)
Supporters for Democratic presidential hopeful Sen. Barack Obama, D-Ill., stand on chairs and peer over and around a vending machine during a town hall meeting in Carson City, Nevada Monday, Nevada Jan. 14, 2008. (AP Photo/Charles Rex Arbogast) Democratic presidential hopeful Sen. Barack Obama, D-Ill., pauses as supporters cheer for him during a town hall meeting in Carson City, Nevada on Monday, Jan. 14, 2008. Nearly 2,000 supporters showed up for the town hall meeting. (AP Photo Nevada Appeal/Kevin Clifford). Democratic presidential hopeful Sen. Barack Obama, D-Ill., visits with supporters outside a town hall meeting in Carson City, Nevada Monday,Jan. 14, 2008. (AP Photo/Charles Rex Arbogast) In this photo provided by Warner Bros., talk show host Tyra Banks, right, welcomes Democratic presidential hopeful Sen. Hillary Rodham Clinton, D-N.Y. to the Tyra Banks Show Monday, Jan. 14, 2008 in New York. The show airs on Friday, Jan. 18. (AP Photo/Warner Bros.,Jason Kempin) People wait behind an American flag for Democratic presidential hopeful former Sen. John Edwards, D-N.C., moments before a campaign event, in Myrtle Beach, S.C., Monday, Jan. 14, 2008. (AP Photo/Steven Senne) Democratic presidential hopeful former Sen. John Edwards, D-N.C., center, stands before an audience at the start of a campaign event, in Pawley's Island, S.C., Monday, Jan. 14, 2008. (AP Photo/Steven Senne) Democratic presidential hopeful former Sen. John Edwards, D-N.C., addresses an audience during a campaign stop, in Pawley's Island, S.C., Monday, Jan. 14, 2008. (AP Photo/Steven Senne)
Supporters cheer Republican presidential hopeful former Arkansas Gov. Mike Huckabee at a campaign stop in Warren, Mich., Monday, Jan. 14, 2008.(AP Photo/Alex Brandon)
Republican presidential hopeful former Arkansas Gov. Mike Huckabee plays the bass guitar during a campaign stop in Warren, Mich. Monday, Jan. 14, 2008.(AP Photo/Alex Brandon)
Republican presidential hopeful former Arkansas Gov. Mike Huckabee speaks at a campaign stop in Warren, Mich., Monday, Jan. 14, 2008.(AP Photo/Alex Brandon)
A supporter of Republican presidential hopeful Rudy Giuliani stands outside of a polling station in Coral Gables, Fla. where early voting began Monday, Jan. 14, 2008, two weeks before Election Day in Florida. Democratic and Republican presidential races are on the ballot, as well as a proposal designed to cut property taxes. (AP Photo/Lynne Sladky)
Republican presidential hopefulm Rudy Giuliani speaks to retirees at the Shell Point Retirement Community Monday, Jan. 14, 2008, in Fort Myers, Fla. (AP Photo/Chris O'Meara)
Republican presidential hopeful former Sen. Fred Thompson, R-Tenn., is surrounded by supporters during a campaign stop in Greenwood, S.C., Monday, Jan. 14, 2008. (AP Photo/Patrick Collard)
Republican presidential hopeful former Sen. Fred Thompson, R-Tenn., signs an autograph for Barbara Kirk, and Michael Johnson, 9, during a campaign stop in Greenwood, S.C., Monday, Jan. 14, 2008. (AP Photo/Patrick Collard)
 Republican presidential hopeful former Massachusetts Gov. Mitt Romney jokes has he walks down the aisle of his campaign charter at the airport in Waterford, Mich., Monday, Jan. 14, 2008. (AP Photo/LM Otero)
Republican presidential hopeful former Massachusetts Gov. Mitt Romney is greeted by applause as he walks up to speak at the Oakland County GOP Anniversary Gala at the Shenandoah Country Club in West Bloomfield , Mich., Monday, Jan. 14, 2008. (AP Photo/LM Otero)
Republican presidential hopeful former Massachusetts Gov. Mitt Romney, right, sits with his wife Ann Romney as he waits to be introduced to speak at the Oakland County GOP Anniversary Gala at the Shenandoah Country Club in West Bloomfield , Mich., Monday, Jan. 14, 2008. (AP Photo/LM Otero)
Republican presidential hopeful former Massachusetts Gov. Mitt Romney sits in the Ford Explorer America concept as his wife Ann watches at the North American International Auto Show Monday, Jan. 14, 2008, in Detroit. (AP Photo/Carlos Osorio)
Sen. Joe Lieberman, I-Conn., left, and Republican presidential hopeful, Sen. John McCain, R-Ariz., sit in the Ford Explorer America concept as they listen to Robert Brown, Ford director of vehicle environmental engineering, at the North American International Auto Show Monday, Jan. 14, 2008, in Detroit. (AP Photo/Carlos Osorio)
Republican presidential hopeful Sen. John McCain, R-Ariz., walks on a snow covered sidewalk outside a polling station on the morning of Michigan's primary election Tuesday, Jan. 15, 2008. (AP Photo/Charles Dharapak)
Republican presidential hopeful, Sen. John McCain, R-Ariz., kisses his wife Cindy during a campaign rally in Traverse City, Mich., on the morning of Michigan's primary election Tuesday, Jan. 15, 2008. (AP Photo/Charles Dharapak)
Republican presidential hopeful Sen. John McCain, R-Ariz., speaks to reporters outside a polling station on the morning of Michigan's primary election in Traverse City, Mich., Tuesday, Jan. 15, 2008. At rear is Cindy McCain.(AP Photo/Charles Dharapak)
A voter application, where a Republican or Democratic Party ballot can be chosen, is seen on a table at a polling station on the morning of Michigan's primary election in Traverse City, Mich., Tuesday, Jan. 15, 2008. (AP Photo/Charles Dharapak)
Republican presidential hopeful, former Arkansas Gov. Mike Huckabee, right, jokes with CBS correspondent Nancy Cordes at a polling place during a campaign stop in Warren, Mich. Tuesday, Jan. 15, 2008.(AP Photo/Alex Brandon)
Republican presidential hopeful, former Massachusetts Gov. Mitt Romney, right, and his wife, Ann Romney, leave a campaign rally on primary day in Grand Rapids, Mich., Tuesday, Jan. 15, 2008. (AP Photo/LM Otero)
Republican presidential hopeful, Sen. John McCain, R-Ariz., sits on his campaign plane as it arrives in Ypsilanti, Mich., on the morning of Michigan's primary election Tuesday, Jan. 15, 2008. (AP Photo/Charles Dharapak)
Michigan Governor Jennifer Granholm speaks with the media after voting on the morning of Michigan Primary, Tuesday Jan. 15, 2008 at Lewton Elementary School in Lansing, Michigan. Granholm announced that she voted for Senator Hillary Clinton at the event. (AP Photo/Kevin W. Fowler) Republican presidential hopeful, former Arkansas Gov. Mike Huckabee, speaks at a campaign stop in Rock Hill, S.C. Tuesday, Jan. 15, 2008.(AP Photo/Alex Brandon) Republican presidential hopeful Sen. John McCain, R-Ariz., speaks at a campaign rally in Ypsilanti, Mich., on the day of Michigan's primary election, Tuesday, Jan. 15, 2008. (AP Photo/Charles Dharapak) Republican presidential hopeful, former Arkansas Gov. Mike Huckabee, speaks to an overflowing crowd at a campaign stop in Sumter, S.C. Tuesday, Jan. 15, 2008.(AP Photo/Alex Brandon) Republican presidential hopeful former Arkansas Gov. Mike Huckabee speaks at a campaign rally in Lexington, S.C., Tuesday, Jan. 15, 2008.(AP Photo/Alex Brandon) Democratic presidential hopefuls, from left, Sen. Barack Obama, D-Ill., Sen. Hillary Rodham Clinton, D-N.Y., and former Sen. John Edwards, D-N.C., stand before the audience before a Democratic presidential debate in Las Vegas, Tuesday, Jan. 15, 2008. (AP Photo/Charles Rex Arbogast) Republican presidential hopeful Sen. John McCain, R-Ariz., addresses a crowd as his wife Cindy, left, watches during a watch party campaign event, in Charleston, S.C., Tuesday, Jan. 15, 2008, following primary voting in Michigan. (AP Photo/Steven Senne) Republican presidential hopeful, former Massachusetts Gov. Mitt Romney greets supporters at a campaign rally on primary day in Grand Rapids, Mich., on the day of Michigan's primary election Tuesday, Jan. 15, 2008. (AP Photo/LM Otero) Republican presidential hopeful former Massachusetts Gov. Mitt Romney celebrates winning the Michigan presidential primary with his wife Ann Romney, left, in Southfield, Mich., Tuesday, Jan. 15, 2008. (AP Photo/LM Otero)
Republican presidential hopeful, former Arkansas Governor Mike Huckabee, speaks after a fundraiser in Traveler's Rest, S.C., Wednesday, Jan. 16, 2008. (AP Photo/Alex Brandon)
Democratic presidential hopeful, Sen. Barack Obama, D-Ill., works the crowd at a town hall meeting in Henderson, Nev., Wednesday, Jan. 16, 2008. (AP Photo/Charles Rex Arbogast) Republican presidential hopeful, Sen. John McCain, R-Ariz., is introduced at a campaign event in Greenville, S.C., Wednesday, Jan. 16, 2008. At right is Cindy McCain. (AP Photo/Charles Dharapak) Republican Presidential hopeful, former Massachusetts Gov. Mitt Romney smiles after he was given a cap by security team for the Sun City Hilton Head Retirement City, Wednesday, Jan. 16, 2008, in Bluffton, S.C. (AP Photo/LM Otero) Grant Blevins 4, waits for Republican presidential hopeful, former Arkansas Governor Mike Huckabee, to speak at a campaign stop in Myrtle Beach, S.C., Thursday, Jan. 17, 2008. (AP Photo/Alex Brandon) A supporter wears a button for Republican Presidential hopeful, former Arkansas Gov. Mike Huckabee at a campaign event at Nucor Steel Berkeley in Huger, S.C., Thursday, Jan. 17, 2008. (AP Photo/Alex Brandon) Republican Presidential hopeful, former Arkansas Gov. Mike Huckabee holds a hard hat given to him at a campaign event at Nucor Steel Berkeley in Huger, S.C., Thursday, Jan. 17, 2008. (AP Photo/Alex Brandon) Former New York City Mayor and Republican presidential hopeful Rudy Giuliani signs the hat of an unidentified, but enthusiastic New Yorker, during a campaign stop in Fort Walton Beach, Fla., Thursday Jan. 17, 2008. (AP Photo/Mari Darr-Welch) Democratic presidential hopeful, former Sen. John Edwards, D-N.C., is photographed by a supporter at the Grand Sierra Resort after a town hall rally in Reno, Nev., Wednesday, Jan. 16, 2008. (AP Photo/Brad Horn) Republican presidential hopeful, former Massachusetts Gov. Mitt Romney, holds an easy button given to him after arrived at a Staples store for a media availability at a Staples store in Columbia, S.C., Thursday, Jan. 17, 2008. (AP Photo/LM Otero) Republican presidential hopeful, Sen. John McCain, R-Ariz., speaks at a campaign event in Aiken, S.C., Thursday, Jan. 17, 2008. (AP Photo/Charles Dharapak) In this photo from video, Democratic presidential hopeful, Sen. Hillary Rodham Clinton, D-N.Y. jokingly welcomes the media aboard "Hil Force One" as she gives pre-flight instructions on the press plane in Las Vegas enroute to a campaign event in Reno, Nev. Wednesday, Jan. 16, 2008. (AP Photo/Pool, Mark LaGanga) Jeri Thompson joins her husband, Republican presidential hopeful former Sen. Fred Thompson, R-Tenn., with their daughter Hayden, 4, and holding son Sammy, on the campaign Thursday, Jan. 17, 2008, in West Columbia, S.C. (AP Photo/Mary Ann Chastain) Republican presidential hopeful, former Sen. Fred Thompson, R-Tenn. is joined by his wife Jeri and daughter Hayden, 4, as they visit a local bakery in downtown Newberry, S.C., Thursday, Jan. 17, 2008. (AP Photo/Mary Ann Chastain)
Democratic presidential hopeful, Sen. Hillary Rodham Clinton, D-N.Y., congratulates Camden Tillman, 9, after he recited Martin Luther King Jr.'s "I Have A Dream" speech at the Zion Missionary Baptist Church in Compton, Calif., Thursday, Jan. 17, 2008. ,(AP Photo/Elise Amendola) Republican presidential hopeful, former Massachusetts Gov. Mitt Romney, looks back from the front of his campaign charter jet as it prepares to land for refueling in Oklahoma City, Okla., on his way to Nevada for campaigning Thursday, Jan. 17, 2008. (AP Photo/LM Otero) Jim Hanks from Lexington, S.C., wears the Confederate flag as he protests against Republican presidential hopeful Sen. John McCain, R-Ariz., outside a campaign event in Columbia, S.C., Thursday, Jan. 17, 2008. (AP Photo/Charles Dharapak)
Republican Presidential hopeful, Sen. John McCain, R-Ariz., arrives at a campaign event in Columbia, S.C., Thursday, Jan. 17, 2008. (AP Photo/Charles Dharapak) Republican presidential hopeful former Sen. Fred Thompson, R-Tenn., speaks to supporters at Seneca Family Restaurant during a campaign in Seneca, S.C., Friday, Jan. 18, 2008. (AP Photo/Patrick Collard) Kara Daillik, left, a San Francisco teacher tends to her six-month-old son Django as Democratic presidential hopeful, Sen. Barack Obama, D-Ill., right, takes part in a roundtable discussion during a campaign visit to the San Francisco Women's Building in San Francisco, Thursday, Jan. 17, 2008. Sen. Obama took part in the event which was a roundtable discussion about the economy and women's issues. (AP Photo/Eric Risberg) Democratic presidential hopeful, former Sen. John Edwards, D-N.C., greets supporters at the headquarters of Service Employees International Union Local 721 in Los Angeles Thursday, Jan. 17, 2007. Edwards is campaigning in Southern California promising a presidency of what he calls "guts, determination and fight." (AP Photo/Reed Saxon)  Democratic presidential hopeful Sen. Hillary Rodham Clinton chats with the media on the press plane before taking off from Santa Barbara, Calif. Thursday, Jan. 17, 2008. (AP Photo/Elise Amendola) Republican presidential hopeful Sen. John McCain, R-Ariz., greets supporters as he leaves a campaign event at Carolina Hospital East Campus in Florence, S.C., Friday, Jan. 18, 2008. (AP Photo/Charles Dharapak) Republican presidential hopeful, former Massachusetts Gov. Mitt Romney, shakes hands with supporters at a campaign stop in Las Vegas, Nev., Thursday, Jan. 17, 2008. (AP Photo/LM Otero)
Republican presidential hopeful former Arkansas Gov. Mike Huckabee speaks at a campaign stop at a resort community in Bluffton, S.C., Friday, Jan. 18, 2008.(AP Photo/Alex Brandon) Democratic presidential hopeful Sen. Barack Obama, D-Ill., visits employees at the Mirage Casino Hotel before the start of the Nevada caucus in Las Vegas, Saturday, Jan. 19, 2008. (AP Photo/Charles Rex Arbogast)
Republican presidential hopeful, former Arkansas Gov. Mike Huckabee, speaks at his election night watch party in Columbia, S.C. Saturday, Jan. 19, 2008.(AP Photo/Alex Brandon)
A young supporter is enthusiastic about meeting Republican presidential hopeful, former Massachusetts Gov. Mitt Romney, during a campaign rally at the University of North Florida in Jacksonville, Fla., Saturday, Jan. 19, 2008. (AP Photo/LM Otero)
Democratic presidential hopeful, Sen. Hillary Rodham Clinton, D-N.Y., listens to questions from reporters at the airport in Las Vegas after she was declared winner of the Nevada Democratic Caucus Saturday, Jan. 19, 2008. (AP Photo/Elise Amendola)
Republican presidential hopeful, Sen. John McCain, R-Ariz., smiles as he speaks after his South Carolina presidential primary election win at The Citadel in Charleston, S.C., Saturday, Jan. 19, 2008. (AP Photo/Charles Dharapak)