Polling box and booths for the election of the Constituent Assembly, Tunis, Tunisia, North Africa, Africa

Pictures of election candidates stuck on building in midddle of street, Herat, Herat Province, Afghanistan, Asia

Women in traditional dress of the Aymara Indians at the re-election ceremony for President Evo Morales Ayma in Tiwanaku, La Paz, Bolivia, South America

Woman in traditional dress of the Aymara at the re-election ceremony for President Evo Morales Ayma in Tiwanaku, La Paz, Bolivia, South America

Political caricature, paper-mache Barack Obama biting Hillary Clinton in the ass, Carnival (Mardi Gras) parade in Duesseldorf, North Rhine-Westphalia, Germany, Europe

People stand in long lines waiting to vote at Salem Memorial Lutheran Church on Election Day in the 2008 Presidential election, Detroit, Michigan, USA

Crowd with Wiphala, rainbow-colored flag of the highland Indians, at the re-election ceremony for President Evo Morales Ayma in Tiwanaku, La Paz, Bolivia, South America

Symbols of the Indian Congress Party and the Communist party painted on a wall, Shibpur district, Howrah, Kolkata, West Bengal, India, Asia

Canvassing of the Communist Party on a house wall, Shibpur district, Howrah, Kolkata, West Bengal, India, Asia

Afghan women vote in the presidential and provincial elections in Mazar-i Sharif, Afghanistan.

Presidential candidate Barack Obama smiles while greeting members of the crowd following the largest political rally of the Democratic front runner's campaign to date at Waterfront Park in Portland, Oregon on May 18, 2008. City of Portland officials estimated the crowd at 72,000 people. It was the largest political rally in Oregon history.

Scenes from voting on the day of presidential and provincial elections in Mazar-i Sharif, Afghanistan.

Pakistanis stage an informal rally in support of the PPP on election day in Karachi, Pakistan on February 18, 2008.

On the last day of campaigning before the election, crowds gather in the National Stadium for a large rally for a favored presidential candidate, Kabul, Afghanistan.

Presidential candidate and Democratic front runner, Barack Obama, speaks in front of huge crowd of people at a record breaking political rally in Waterfront Park, Portland, Oregon on May 18, 2008. The City of Portland Fire Department estimated crowd attendance at 72,000. It was the largest campaign rally to date for the candidate and the largest political rally in Oregon history.

Presidential candidate and Democratic front runner, Barack Obama, speaks in front of huge crowd of people at a record breaking political rally in Waterfront Park, Portland, Oregon on May 18, 2008. The City of Portland Fire Department estimated crowd attendance at 72,000. It was the largest campaign rally to date for the candidate and the largest political rally in Oregon history.

A bored poll worker on election day in Karachi, Pakistan on February 18, 2008.

Presidential candidate and Democratic front runner, Barack Obama, speaks in front of huge crowd of people at a record breaking political rally in Waterfront Park, Portland, Oregon on May 18, 2008. The City of Portland Fire Department estimated crowd attendance at 72,000. It was the largest campaign rally to date for the candidate and the largest political rally in Oregon history.

Bill Clinton in downtown Pittsburgh, Pennsylvania the day before the PA primary.

Bill Clinton in downtown Pittsburgh, Pennsylvania the day before the PA primary.

Presidential candidate and Democratic front runner, Barack Obama, speaks in front of huge crowd of people at a record breaking political rally in Waterfront Park, Portland, Oregon on May 18, 2008. The City of Portland Fire Department estimated crowd attendance at 72,000. It was the largest campaign rally to date for the candidate and the largest political rally in Oregon history.

Portrait of smiling woman showing Vote button in city

Woman with vote button on her top

Close-up of voting sticker on shirt