U.S. Voters Cast Ballots In Tight Presidential Race

A boy runs to tell voters where to enter the Town Hall of Canterbury, New Hampshire.

A voter walks past a New York police officer inside a tent at a polling site built to service residents of the Queens borough neighborhoods of Breezy Point and the Rockaways, whose original site was devastated by superstorm Sandy.

Tom Hoisington (right) raises his right hand after being registered to vote at the Bishop Leo O'Neil Youth Center in Manchester, New Hampshire. Hoisington's grandson, Tonykus Hebert, mimics his grandfather.

A girl watches as her grandmother votes at the old Town Hall in Bristol, New Hampshire.

People wait in line to vote at Caroline High School in Milford, Virginia.

Voters at the polls in a car dealership in Columbus, Ohio.

An election worker hangs signs at the Martin Luther King Jr. Memorial Library in Washington, D.C.

Volunteer peeks outside the Pinellas County Democratic Party headquarters in St. Petersburg, Florida.

A pregnant woman shows off the voting sticker on her belly outside the old Town Hall in Bristol, New Hampshire.

U.S. citizens vote in the presidential election at Carleton Middle School in Sterling Heights, Michigan.

A voter wears an "I Voted" sticker on his forehead after casting his ballot at a polling station in Chicago, Illinois.

A voter casts her ballot with her two children at a polling place in a U.S. cellular store in Chicago.

People wait in line to vote in Coral Gables, Florida.

People line up to vote in Crawfordville, Florida.

U.S. President Barack Obama makes a phone call to a campaign volunteer during a visit to a field office in Chicago on Election Day.

Republican presidential nominee Mitt Romney and his wife, Ann, finish filling out their ballots while voting in Belmont, Massachusetts.