Attorneys who practice election campaign and political law handle cases involving the financing of election campaigns by candidates and third-parties, ethics in candidate and election issue advertising, voter eligibility, eligibility to hold office, district mapping, and election procedures.
As of December 3, 2009 Mattawa officially became a non-charter code city in Grant County, Washington, United States. The population was 2,609 at the 2000 census. An estimated population exists between 4500-6500 residents during peak fruit picking/agricultural season(s) and subsides by approximately 2000 residents during non-picking seasons.