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Mitt Romney greeted supporters yesterday during a rally at the Weber Paper Co. in Dubuque, Iowa.

CHARLES DHARAPAK/ASSOCIATED PRESS

Representative Ron Paul of Texas campaigned at the Steeple Gate Inn in Davenport yesterday.

ERIC GAY/ASSOCIATED PRESS

Rick Santorum made a campaign stop at the Reising Sun Cafe in Polk City, Iowa, yesterday.

CHARLIE NEIBERGALL/ASSOCIATED PRESS

Governor Rick Perry of Texas greeted local residents during a campaign stop at the Stoney Creek Inn, in Sioux City.

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Michele Bachmann visited a campaign stop in West Des Moine, Iowa, yesterday.

CHERYL SENTER/ASSOCIATED PRESS

Jon Huntsman reached inside a vehicle to shake hands while campaigning in Nashua, N.H.

EVAN VUCCI/ASSOCIATED PRESS

Newt Gingrich and his wife, Callista, met with Iowa residents yesterday during a campaign stop in Independence.