Opinion polling for the United States House of Representatives elections, 2010

†Internal poll commissioned for Bright campaign

†Internal poll (Public Opinion Strategies for Crawford and Garin-Yart-Yang and Anzalone Liszt Research for Causey)

†Internal poll commissioned for McNerney campaign

†Internal poll commissioned for Hedrik campaign

†Internal poll commissioned for Murphy campaign

†Internal poll commissioned for Edwards campaign

†Internal poll (Wilson Research Strategies for West and Anzalone Research and Harstad Strategic Research for Klein)

†Internal poll for Kosmas campaign

†Internal poll for Garcia campaign

†Internal poll (Tarrance Group for Djou and Global Strategy Group for Hanabusa)

†Internal poll commissioned for Seals campaign

†Internal poll (Public Opinion Strategies for Kinzinger and Anzalone Liszt Research for Halvorson)

†Internal poll (Tarrance Group for Hultgren and Benenson Strategy Group for Foster)

†Internal poll (Market Research Insight for Cao and Anzalone Liszt Research for Richmond)

†Internal poll for Kratovil campaign

†Internal poll for Adler campaign

†Internal poll for Heinrich campaign

†Internal poll (Hamilton Campaigns polls commissioned by Teague; Tarrance Group poll for Pearce)

†Internal poll for Arcuri campaign

†internal poll (Anzalone Liszt Research and Greenberg Quinlan Rosner Research for Kissell and Public Opinion Strategies for Johnson)

†Internal poll (Garin-Hart-Yang for Pomeroy and Public Opinion Strategies for Berg)

†Internal poll for Schrader campaign

†Internal poll for Carney campaign

Special election (May 18)

General election

†Internal poll for Miller campaign

†Internal poll for Herseth-Sandlin campaign

General election