Reuters Pictures 3 hours ago

Pinal County Sheriff Paul Babeu speaks during a news conference near the Superstition Mountains in Apache Junction, Arizona, in this file picture taken November 24, 2011. Arizona sheriff Babeu resigned as co-chair of U.S. Republican presidential hopeful Mitt Romney's campaign in the...

AP Photo 6 hours ago

A float with figures depicting French soccer player Zinedine Zidane and U.S. President Barack Obama parades during the 128th edition of the Nice Carnival, Saturday, Feb. 18, 2012, in Nice, southern France. This year the carnival is celebrating the theme "King of Sport."

Reuters Pictures 7 hours ago

A float with giant figures of former soccer star Zinedine Zidane (C), U.S President Barack Obama (L) and Pope Benedict XVI (R) is paraded during the Nice Carnival in Nice, southeastern France February 18, 2012. The carnival, which starts on February 17 and continues to March 4,...

AP Photo 8 hours ago

Republican presidential candidate, former Pennsylvania Sen. Rick Santorum shakes hands after giving a speech at the Summit County Lincoln Dinner Saturday, Feb. 18, 2012, in Akron, Ohio.

AP Photo 8 hours ago

A supporter holds a pamphlet while listening to Republican presidential candidate, former Pennsylvania Sen. Rick Santorum give a speech at the Summit County Lincoln Dinner Saturday, Feb. 18, 2012, in Akron, Ohio.

AP Photo 9 hours ago

Republican presidential candidate Rep. Ron Paul, R-Texas, speaks to supporters at a rally held at Union Station Saturday, Feb.18, 2012, in Kansas City, Mo.

AP Photo 9 hours ago

Republican presidential candidate, former Pennsylvania Sen. Rick Santorum smiles as he listens to speakers at the Summit County Lincoln Dinner Saturday, Feb. 18, 2012, in Akron, Ohio.

AP Photo 9 hours ago

Republican presidential candidate, former Massachusetts Gov. Mitt Romney, speaks at the start of 'A Tribute to Salt Lake 2002 featuring Stars on Ice,' in Salt Lake City, Saturday, Feb. 18, 2012. Behind him, wiping his eye, is Derek Parra, who won a gold and silver medal in speed skating...

AP Photo 9 hours ago

Republican presidential candidate, former Massachusetts Gov. Mitt Romney, arrives with former Olympic figure skating medalist Kristi Yamaguchi to speak at the start of 'A Tribute to Salt Lake 2002 featuring Stars on Ice,' in Salt Lake City, Saturday, Feb. 18, 2012.

AP Photo 9 hours ago

A young supporter holds a sign as he waits for Republican presidential candidate Rep. Ron Paul, R-Texas, to speaks at a rally held at Union Station Saturday, Feb. 18, 2012, in Kansas City, Mo.

AP Photo 9 hours ago

Supporter Donna Otoya chants as she waits for Republican presidential candidate Rep. Ron Paul, R-Texas, to speaks at a rally held at Union Station, Saturday, Feb. 18, 2012, in Kansas City, Mo.

AP Photo 10 hours ago

Republican presidential candidate, former Pennsylvania Sen. Rick Santorum hands back an autographed program before speaking at the Summit County Lincoln Dinner Saturday, Feb. 18, 2012, in Akron, Ohio.

AP Photo 10 hours ago

Republican presidential candidate, former Pennsylvania Sen. Rick Santorum meets supporters before speaking at the Summit County Lincoln Dinner Saturday, Feb. 18, 2012, in Akron, Ohio.

AP Photo 11 hours ago

Republican presidential candidate, former Massachusetts Gov. Mitt Romney, waves after speaking to a group of former Salt Lake City Olympics committee members, marking the tenth anniversary of the games, in Salt Lake City, Utah, Saturday, Feb. 18, 2012. Right is his wife Ann Romney, and...

AP Photo 11 hours ago

Republican presidential candidate, former Massachusetts Gov. Mitt Romney, pauses while speaking to a group of former Salt Lake City Olympics committee members, marking the tenth anniversary of the games, in Salt Lake City, Utah, Saturday, Feb. 18, 2012.

AP Photo 11 hours ago

Republican presidential candidate, former Massachusetts Gov. Mitt Romney, shakes hands with Fraser Bullock, president and CEO of the Salt Lake Olympic Organizing Committee, before speaking to a group of former Salt Lake City Olympic committee members, marking the tenth anniversary of...

AP Photo 11 hours ago

Republican presidential candidate, former Massachusetts Gov. Mitt Romney, and his wife, Ann, arrive onstage to speak to a group of former Salt Lake City Olympic committee members, at an event marking the tenth anniversary of the games, in Salt Lake City, Utah, Saturday, Feb. 18, 2012.

AP Photo 12 hours ago

Protesters congregate outside where Republican presidential candidate, former Pennsylvania Sen. Rick Santorum plans to speak Saturday, Feb. 18, 2012, in Akron, Ohio. Santorum will speak at the Summit County Lincoln Dinner.

Reuters Pictures 13 hours ago

Supporters hand out buttons of Republican Presidential Candidate Rick Santorum during a Tea Party Rally in Columbus, Ohio February 18, 2012.

Reuters Pictures 13 hours ago

Supporters listen as Republican Presidential Candidate Rick Santorum during a Tea Party Rally in Columbus, Ohio February 18, 2012.

Reuters Pictures 13 hours ago

State Senator Jim Hughes (R-OH) looks on as Republican Presidential Candidate Rick Santorum (R) speaks during a Tea Party Rally in Columbus, Ohio February 18, 2012.

Reuters Pictures 13 hours ago

State Senator Jim Hughes (R-OH) and Ohio Attorney General Mike DeWine (C) listen as Republican Presidential Candidate Rick Santorum (R) speaks during a Tea Party Rally in Columbus, Ohio February 18, 2012.

Getty Images 13 hours ago

COLUMBUS, OH - FEBRUARY 18: Republican presidential candidate and former U.S. Sen. Rick Santorum looks at a copy of the U. S. Constitution while speaking at a Tea Party rally February 18, 2012 in Columbus, Ohio. Santorum is campaigning in Ohio ahead of the March 6 state primary.

Reuters Pictures 13 hours ago

Republican Presidential Candidate Rick Santorum shakes hands with supporters during a Tea Party Rally in Columbus, Ohio, February 18, 2012.

Getty Images 13 hours ago

COLUMBUS, OH - FEBRUARY 18: Supporters carry signs for Republican presidential candidate and former U.S. Sen. Rick Santorum speaks during a Tea Party rally February 18, 2012 in Columbus, Ohio. Santorum is campaigning in Ohio ahead of the March 6 state primary.