As the five-day filing period opened Monday for county, state and federal offices, most of the people who filed first were incumbents seeking re-election.
But one incumbent already has a challenger.
Franklin County Commissioner Bob Koch will face off against Pasco City Councilman Al Yenney to see who represents the county's District 2.
Koch is seeking his third term in office after being elected to a second term in 2008 -- defeating opponent Lee Barrow.
Yenney was elected to the Pasco council in 2007, defeating longtime incumbent Joe Jackson, and re-elected in 2011.
Franklin County Commissioner Brad Peck hasn't yet filed for a second term representing District 1, but if he does, he'll face opposition from Mark Faith, who works for the county as a building inspector.
Other incumbents who have filed include Benton County Commissioner Jim Beaver; State Rep. Larry Haler, R-Richland; State Rep. Terry Nealey, R-Dayton; Franklin PUD Commissioner Stu Nelson; and Benton PUD Commissioner Robert Bertsch.
Benton-Franklin Superior Court Judges Bruce Spanner, Robert Swisher, Craig Matheson, Cameron Mitchell, Vic VanderSchoor and Carrie Runge also filed on Monday. All are unopposed so far.
U.S. Rep. Doc Hastings, a Pasco Republican, also filed for re-election to Congress, along with Sen. Maria Cantwell, a Democrat from Seattle.
Hastings is unopposed so far, while Cantwell faces opposition from state Sen. Michael Baumgartner, a Spokane Republican, and Chuck Jackson, also a Republican.
Candidates can file online or in-person at county auditor's offices or the Secretary of State's office through 4 p.m. Friday.
To see positions open for election or to file for candidacy, go to www.bentonelections.com or www.co.franklin.wa.us/auditor.
Candidates for local offices or state legislative districts only representing one county can file directly with the county auditor's office.
Candidates for federal and statewide offices, and state legislative districts representing multiple counties must file with the Secretary of State's office. Online filing is at www.sos.wa.gov. The primary is Aug. 7.