Scenes from the Super Tuesday States -- PICTURES

Rick Santorum kisses his wife, Karen, before speaking to supporters at an election-night party Tuesday in the gymnasium of Steubenville High School in Steubenville, Ohio. (AP Photo/Gene J. Puskar)

Mitt Romney, hugs former Massachusetts Lt. Gov. Kerry Healey, as he and his wife, Ann, arrive at their Super Tuesday primary watch party in Boston on Tuesday. (AP Photo/Gerald Herbert)

Mitt Romney, greets supporters at his Super Tuesday primary party in Boston. (AP Photo/Gerald Herbert)

Newt Gingrich is flanked by his wife, Callista, as he speaks to a crowd gathered Tuesday for a rally after he won the Georgia primary. (AP Photo/John Bazemore)

Mitt Romney and his wife, Ann, greet supporters as they arrive at their Super Tuesday primary rally in Boston on Tuesday. (AP Photo/Gerald Herbert))

Eisley Collins, 2, snacks next to a Ron Paul sign at a Republican watch party Tuesday in Oklahoma City. (AP Photo/Sue Ogrocki)

Sister Grace Anne, right, of Penance of the Sorrowful Mother, prays at Rick Santorum's election night party Tuesday at Steubenville High School in Steubenville, Ohio. (AP Photo/Eric Gay) (AP Photo/Eric Gay)

Newt Gingrich and his wife, Callista, wave as they arrive for a Super Tuesday rally Tuesday in Atlanta. (AP Photo/Evan Vucci)

Ron Paul takes in the applause of the crowd as he address a crowd during the North Dakota caucus Tuesday in Fargo. (AP Photo/Charles Rex Arbogast)

Paul addresses the crowd during the North Dakota caucus Tuesday. (AP Photo/Charles Rex Arbogast)

Supporters cheer as election results come in at the Super Tuesday primary watch party for Mitt Romney in Boston on Tuesday. (AP Photo/Gerald Herbert)

Supporters of Newt Gingrich pose for photos during a Super Tuesday rally in Atlanta. (AP Photo/Evan Vucci)

Mitt Romney looks at his ballot with his wife, Ann, as he votes in the Massachusetts primary in Belmont. (AP Photo/Gerald Herbert)

Workers hang an American Flag as they prepare for Republican presidential candidate, former Pennsylvania Sen. Rick Santorum' Election Night Party, Tuesday, March 6, 2012, at the Steubenville High School in Steubenville, Ohio. (AP Photo/Eric Gay)

Mitt Romney, and his wife Ann, talk to reporters on his campaign plane Tuesday in Columbus, Ohio, before taking off for Boston (AP Photo/Gerald Herbert)

President Obama reacts after a reporter asked him Tuesday if he had anything to say to Romney during a news conference at the White House. (AP Photo/Charles Dharapak)

Marc Lewis holds daughter, Alexa, as he votes Tuesday at the Heritage Universalist Unitarian Church.

Sheena Bentley, left, and Joel Hern vote Tuesday at the Heritage Universalist Unitarian Church in Cincinnati. (AP Photo/Al Behrman)

Newt Gingrich speaks Tuesday at the U.S. Space and Rocket Center in Huntsville, Ala. (AP Photo/Evan Vucci)

Campaign staffers for Ron Paul tape signs together Tuesday before the North Dakota caucus in Fargo. (AP Photo/Charles Rex Arbogast)

Voters cast their ballots at the Sarah Smith Elementary School in Atlanta's North Buckhead area Tuesday. (AP Photo/Robert Ray)

A voter casts his ballot at the polling place Tuesday, March 6, 2012 in Montpelier, Vt. Vermonters will cast their votes in the presidential primary on Tuesday ((AP Photo/Toby Talbot))

William House of Huntsville, Ala., waits for Republican presidential candidate, former House Speaker Newt Gingrich to arrive during a campaign stop at the U.S. Space and Rocket Center, Tuesday, March 6, 2012, in Huntsville, Ala. (AP Photo/Evan Vucci)

Republican presidential candidate, former Pennsylvania Sen. Rick Santorum arrives to speak before the American Israel Public Affairs Committee (AIPAC), in Washington, Tuesday, March 6, 2012. (AP Photo/Charles Dharapak)

Callista Gingrich and her husband, Republican presidential candidate, former House Speaker Newt Gingrich listen to former presidential candidate Herman Cain speak during a campaign stop at Food City on Monday, March 5, 2012, in Chattanooga, Tenn.  (AP Photo/Evan Vucci) (AP Photo/Evan Vucci))

Rep. Ron Paul, R-Texas, speaks to supporters during a town hall meeting on Monday at the Bonner County Fairgrounds in Sandpoint, Idaho. (AP Photo/Matt Mills McKnight)

Lynn Armstrong of Sarasota, Fla., holds a puppet of Republican presidential candidate, former House Speaker Newt Gingrich outside a campaign stop in Duluth, Ga., Tuesday, March 6, 2012. (AP Photo/Evan Vucci)

Attendees say the Pledge of Allegiance before Rick Santorum spoke on Monday at the American Legion in Westerville, Ohio. (AP Photo/Eric Gay)

Ann Romney wipes lipstick off Mitt Romney's face after kissing him on Monday at a campaign rally in Zanesville, Ohio. (AP Photo/Gerald Herbert)

Newt Gingrich waits to be introduced backstage during a campaign stop on Monday at Food City in Chattanooga, Tenn. (AP Photo/Evan Vucci)

Rick Santorum leaves the American Legion after speaking on Monday in Westerville, Ohio. (AP Photo/Eric Gay)

Dominic Brauer of Sandpoint, Idaho, holds a sign outside the Bonner County Fairgrounds before a town hall meeting with Ron Paul on Monday in Sandpoint. (AP Photo/Matt Mills McKnight)

Rick Santorum waits backstage before speaking on Monday at the American Legion in Westerville, Ohio.   (AP Photo/Eric Gay)