Congressman Doc Hastings (R-WA) announced this February that he will not run for reelection in November. His retirement comes 2 decades after Hastings was first voted into office in 1994. Hastings has served as chairman for the House Natural Resources Committee since 2011, tackling issues such as expanding domestic energy production and protecting national forests, to providing hawkish oversight of federal agencies. Hastings founded and chairs the House Nuclear Cleanup Caucus, reflecting issues associated with the Hanford Nuclear Reservation, which is in his district. Hastings is 73 years old.

Source: Politico, Rep. Hastings press release