 In this heavily conservative, eastern Oregon-based district, which is one of the largest districts in the country, incumbent Republican Congressman Greg Walden ran for a fourth term.Democratic candidate Carol Voisin, a professor at Southern Oregon University, faced uphill odds against Walden, and ultimately, she was defeated in a landslide election, along with Constitution Party candidate Jack Brown.Democratic Congressman Earl Blumenauer, who has served in Congress since previous Congressman Ron Wyden was elected to the Senate in 1996, sought a sixth term in this staunchly liberal district based in Portland and its suburbs in Clackamas County.