Campaign The election featured an open contest because incumbent U.S. Senator
Wayne Allard declined to seek re-election. He honored his 1996 pledge to serve no more than two terms in the
U.S. Senate and announced that he would retire from his service to the
US Senate and not seek a 3rd term, leaving Colorado's
Class II Senate seat open. Both parties believed this senate contest would be one of the most competitive senate races during the 2008 election.
Predictions Polling Results {{Election box begin
Counties that flipped from Republican to Democratic •
Larimer (largest city:
Fort Collins) •
Grand (Largest city:
Granby) •
Garfield (largest municipality:
Glenwood Springs) •
Eagle (largest municipality:
Edwards) •
Jefferson (largest city:
Lakewood) •
Arapahoe (largest city:
Aurora) •
Chaffee (largest city:
Salida) •
Ouray (largest city:
Ouray) •
San Juan (largest municipality:
Silverton) •
Mineral (Largest city:
Creede) •
Conejos (largest municipality:
Manassa) •
Alamosa (largest municipality:
Alamosa) == See also ==