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Friday 06 January 2012 World Gallery

Iowa's turbulent caucus in pictures

A girl holds up a yard sign at Ron Paul's campaign event in Kirkwood, Iowa, on the last day of campaigns. (Tawanda Kanhema)

A man listens to Ron Paul speak. Paul's events were dominated by young voters. (Tawanda Kanhema)

Republican candidate Ron Paul addresses supporters in Kirkwood, Iowa. (Tawanda Kanhema)

Branding himself as

Michele Bachmann addresses supporters at her campaign headquarters in Des Moines, Iowa. (Tawanda Kanhema)

Newt Gingrich speaks to supporters in Walford, Iowa. (Tawanda Kanhema)

Newt Gingrich's wife, Callista Gingrich, looks at a mascot from her new children's book at a campaign event. (Tawanda Kanhema)

One of Michele Bachmann's campaign team members waits for her arrival for an event in Des Moines, Iowa. (Tawanda Kanhema)

Mitt Romney's wife, Ann Romney, at a campaign event in Marion, Iowa. (Tawanda Kanhema)

Photo 1/9 A girl holds up a yard sign at Ron Paul's campaign event in Kirkwood, Iowa, on the last day of campaigns. (Tawanda Kanhema)

The 2012 Iowa Republican caucus has been notable for its volatility, with six front-runners since August.