High Quality Content by WIKIPEDIA articles! Cynthia Marie Lummis Wiederspahn (born September 10, 1954) is the U.S. Representative for Wyoming`s at-large congressional district, serving since 2009. She is a member of the Republican Party. She previously served as a state representative (1979–83, 1985–93), state senator (1993–95), and state treasurer (1999–2007).