Super Tuesday: Nation

A woman carries her child on her hip in front of the First Baptist Church polling station in Maricopa, Ariz., before casting her vote on Super Tuesday, the U.S. presidential election’s biggest primary day.  (Win McNamee / Getty Images)

Voters get ready to cast ballots Tuesday at the Canaan Baptist Church in New York City’s Harlem neighborhood.  (Carolyn Cole / Los Angeles Times)

A dog named Malika waits for its owner, Margaret Johnson, to finish voting at P.S. 175 in Harlem, New York.  (Carolyn Cole / Los Angeles Times)

Roger Sloan walks back to his car after voting in Meridian, Okla., on Tuesday. The district’s 747 registered voters cast ballots in the enclosed porch of the home on LeGrande Farm and Ranch.  (Sue Ogrocki / Associated Press)

GOP presidential hopeful John McCain and his wife, Cindy, board his campaign plane in Newark, N.J., before taking off for California. Both New Jersey and California were among the 24 states holding a Super Tuesday primary or caucus.  (Mario Tama / Getty Images)

GOP presidential hopeful John McCain attends a rally in San Diego, Ca.  (Don Bartletti / Los Angeles Times)

Former Massachusetts Gov. Mitt Romney, a Republican presidential candidate, inserts his ballot Tuesday into a scanning machine at City Hall in Belmont, Mass., as his wife, Ann, watches.  (LM Otero / Getty Images)

Sen. Barack Obama (D-Ill.) prepares to cast his Super Tuesday ballot at Beulah Shoesmith Elementary School in Chicago.  (Nam Y. Huh / Associated Press)

Democratic presidential candidate and New York Sen. Hillary Rodham Clinton talks with reporters as she waits for her husband, former President Bill Clinton, to finish voting Tuesday at Douglas Grafflin Elementary School in Chappaqua, New York.  (Justin Sullivan / Getty Images)

Democratic presidential hopeful Hillary Rodham Clinton, right, a senator from New York, reaches out to hug a woman after casting her primary ballot Tuesday at Douglas Grafflin Elementary School in Chappaqua, N.Y.  (Stephen Chernin / Associated Press)

Sen. Barack Obama (D-Ill.) greets supporters during a presidential campaign rally Monday at the World Trade Center Boston.  (Chip Somodevilla / Getty Images)

Republican Sen. John McCain, followed by his wife, Cindy, and former New York City Mayor Rudy Giuliani, makes a presidential campaign stop at Rockefeller Center Plaza in New York on Tuesday.  (Charles Dharapak / Associated Press)

Presidential candidate and former Massachusetts Gov. Mitt Romney talks to a crowd of Republicans on Tuesday morning at the party’s West Virginia presidential convention in Charleston.  (L.M. Otero / Associated Press)

Republican Mike Huckabee signs his autograph for a woman Monday after a presidential campaign speech in Texarkana, Ark., where he used to work as a Baptist preacher. He is also a former governor of Arkansas.  (Evan Lewis / Associated Press)

Rep. Ron Paul of Texas speaks during the West Virginia Republican Presidential Convention in Charleston on Tuesday morning.  (Jeff Gentner / Associated Press)