| Type | Date | Name Filing Report | Candidate Supported or Opposed |
| Independent Expenditure 48Hr | Oct 31, 2008 | Ada County Democratic Party | Democratic candidates |
| Independent Expenditure 48Hr | Oct 31, 2008 | Idaho Prosperity Fund | Anderson |
| Independent Expenditure 48Hr | Oct 30, 2008 | Tetons for Tomorrow | Benedict, Rinaldi |
| Independent Expenditure 48Hr | Oct 29, 2008 | Free Enterprise PAC | Hodge |
| Independent Expenditure 48Hr | Oct 29, 2008 | Realtors PAC | Heinrich, Roberts, Shepherd |
| Independent Expenditure 48Hr | Oct 29, 2008 | Political Action Committee for Education | Kelly |
| Independent Expenditure 48Hr | Oct 29, 2008 | Free Enterprise PAC | Andrus |
| Independent Expenditure 48Hr | Oct 22/29, 2008 | Idaho Chooses Life | Young |
| Independent Expenditure 48Hr | Oct 29, 2008 | Idaho Prosperity Fund | Heinrich, Roberts, Shepherd |
| Independent Expenditure 48Hr | Oct 27/28, 2008 | Tetons for Tomorrow | Benedict, Rinaldi |
| Independent Expenditure 48Hr | Oct 28, 2008 | Conservation Voters for Idaho | Woods, Langhorst, Bogert, Zaremba, Neil, Howard |
| Independent Expenditure 48Hr | Oct 28, 2008 | Ada County Democratic Party | Democratic candidates |
| Independent Expenditure 48Hr | Oct 28, 2008 | Idaho Prosperity Fund | Howard |
| Independent Expenditure 48Hr | Oct 27, 2008 | Restore Representative Government | King, Polestra, Reheder, McGimpsey, Howard |
| Independent Expenditure 48Hr | Oct 27, 2008 | Madison County Republican Party | Federal, Leg. & County Republican Cands. |
| Independent Expenditure 48Hr | Oct 27, 2008 | Political Action Committee for Education | Kelly |
| Independent Expenditure 48Hr | Oct 27, 2008 | Idaho Prosperity Fund | Heinrich, Shepherd, Roberts |
| Independent Expenditure 48Hr | Oct 27, 2008 | Free Enterprise PAC | Hodge |
| Independent Expenditure 48Hr | Oct 25, 2008 | Realtors PAC | Anderson |
| Independent Expenditure 48Hr | Oct 23/25, 2008 | Wendy Jaquet | Jaquet, Faulkner |
| Independent Expenditure 48Hr | Oct 24, 2008 | Ada County Democratic Party | Commissioner, Legislative Candidates |
| Independent Expenditure 48Hr | Oct 24, 2008 | Ada County Democratic Party | Ada County Leg. Candidates |
| Independent Expenditure 48Hr | Oct 22/24, 2008 | Idaho Prosperity Fund | Poll / Goedde |
| Independent Expenditure 48Hr | Oct 23, 2008 | Tetons for Tomorrow | Benedict, Rinaldi |
| Independent Expenditure 48Hr | Oct 13, 2008 | Conservation Voters for Idaho | Woods, Langhorst |
| Independent Expenditure 48Hr | Oct 21, 2008 | Conservation Voters for Idaho | Zaremba, Neill, Bogert, Anderson, Howard, Kelly, Bock, Woods, Langhorst |
| Electioneering Communication | June 26, 2008 | Van Diebert, Mark | Campaign Kick-off Party |
| Independent Expenditure 48Hr | May 23, 2008 | IACI Business PAC | Clayton Cramer |
| Independent Expenditure 48Hr | May 23, 2008 | IACI Business PAC | Vander Woude, Bayer |
| Independent Expenditure 48Hr | May 23, 2008 | IACI Business PAC | Fulcher, Vander Woude, Bayer |
| Independent Expenditure 48Hr | May 21-23, 2008 | Free Enterprise PAC | McKague |
| Independent Expenditure 48Hr | May 22-23, 2008 | Free Enterprise PAC | McKague, Ellsworth |
| Independent Expenditure 48Hr | May 23, 2008 | REALTORS PAC | Rawls, Hartnett, Fulcher, Snodgrass, Anderson |
| Independent Expenditure 48Hr | May 22, 2008 | REALTORS PAC | Jorgenson, Hartnett, Fulcher, Snodgrass |
| Independent Expenditure 48Hr | May 22, 2008 | PAC for Education | Snodgrass, Bastian |
| Independent Expenditure | May 21, 2008 | Larry Spencer | Rawls, Hart, Lawrence |
| Independent Expenditure | May 21, 2008 | Larry Spencer | Broadsword, Largen, Keough, Anderson, Heckel |
| Independent Expenditure 48Hr | May 21, 2008 | Free Enterprise PAC | McKague, Troupis |
| Independent Expenditure 48Hr | May 21, 2008 | REALTORS PAC | Rawls, Hartnett, Snodgrass |
| Independent Expenditure 48Hr | May 21, 2008 | IACI Business PAC | Fulcher, Vander Woude, Bayer |
| Independent Expenditure 48Hr | May 20, 2008 | IACI Business PAC | Clayton Cramer |
| Independent Expenditure 48Hr | May 20, 2008 | REALTORS PAC | Hartnett, Anderson |
| Independent Expenditure 48Hr | May 19, 2008 | Free Enterprise PAC | McKague |
| Independent Expenditure 48Hr | May 17, 2008 | Idaho Chooses Life | Mike Moyle, Chuck Winder |
| Independent Expenditure 48Hr | May 17, 2008 | Idaho Chooses Life | Christ Troupis, Tom Loerstcher |
| Independent Expenditure 48Hr | May 16, 2008 | PAC for Education | Snodgrass, Bastian |
| Independent Expenditure 48Hr | May 16, 2008 | IACI Business PAC | Clayton Cramer |
| Independent Expenditure | May 14, 2008 | IACI Business PAC | Fulcher, Vander Woude, Bayer |
| Electioneering Communication | May 8-18, 2008 | Cornerstone Institute of Idaho, Inc. | Voter Guide/Web Site Maintenance |
| Electioneering Communication | May 8-18, 2008 | Cornerstone Institute of Idaho, Inc. | Voter Guide/Web Site Maintenance |
| Electioneering Communication | May 8-18, 2008 | Cornerstone Institute of Idaho, Inc. | Voter Guide |