Karen McMahon
Karen McMahon is an American lawyer and politician who serves in the New York State Assembly from the 146th district, which represents the village of Williamsville, and the towns of Amherst and Pendleton. Early career. McMahon served as a law clerk for state and federal judiciaries for many years. State Assembly. McMahon won the November 6, 2018, election for the 146th district of the New York State Assembly, defeating four-term incumbent Republican Ray Walter.