U.S. Representative Katherine Clark was sworn in as a Member of the United States House of Representatives by House Speaker John Boehner, December 12, 2013.

The Honorable Katherine Clark was elected in special election December 10, 2013 to serve as representative of  Massachusetts's 5th Congressional District. Representative Clark was added to the rolls of the House upon executing the oath of office.

Massachusetts's 5th Congressional District stretches from the coast to communities north and west of Boston including Waltham, Framingham and Medford.