Question: Which congressional district has this American politician from Washington, for whom Jaime Herrera Beutler served as a Senior Legislative Aide, been representing since 2005?
Sentence (from "Jaime Herrera Beutler"): She is a former Senior Legislative Aide for U.S. Congresswoman Cathy McMorris Rodgers (R-Spokane) and a former state representative for the 18th Legislative District in Washington.
Relevant evidence: Yes