Kilmer was ranked the 33rd most bipartisan member of the House of Representatives during the 114th Congress (and the third most bipartisan member of the U.S. House of Representatives from Washington) in the Bipartisan Index created by The Lugar Center and the McCourt School of Public Policy that ranks members of Congress by their degree of bipartisanship (by measuring how often each member's bills attract co-sponsors from the opposite party and each member co-sponsors bills by members of the opposite party).
