Two GOP candidates advanced in a primary held on Tuesday to fill the seat being vacated by Rep. Doc Hastings (R-Wash.).
Former National Football League player Clint Didier (R) and former director of the Washington Department of Agriculture Dan Newhouse (R) will challenge each other in the November general election. Didier received 30 percent of the vote to Newhouse's 27 percent.
Hastings, the chairman of the House Natural Resources Committee, announced in February that he would not be seeking re-election in November.
The race to replace Hastings opened the door to a large number of candidates: eight Republicans, two Democrats and two independents.
While in Congress, Hastings was a proponent of altering the Endangered Species Act to curtail environmentalist lawsuits, and also voted to curb the Drug Enforcement Administration's power in enforcing federal marijuana laws in states that legally permit medical marijuana use.