High Quality Content by WIKIPEDIA articles! Dennis Moore (born November 8, 1945) is a former U.S. Representative for Kansas`s 3rd congressional district, serving from 1999 until 2011. He is a member of the Democratic Party. The district, the state`s smallest and most affluent, takes in most of the Kansas side of the Kansas City metropolitan area, including Kansas City, Overland Park, Olathe and Lenexa.