Suzan Kay DelBene (née Oliver; DEL-BEH-nay; born February 17, 1962) is an American politician and businesswoman who has been the United States representative from Washington's 1st congressional district since 2012.DelBene was the 2010 Democratic nominee for U.S. representative for Washington's 8th congressional district and narrowly lost to incumbent Republican Dave Reichert. In 2012 she won the general election in Washington's redrawn 1st district against Republican John Koster, while simultaneously winning the election for the remainder of the term in the 1st district under the pre-2012 boundaries, a seat left vacant by the resignation of Jay Inslee. DelBene chairs the Democratic Congressional Campaign Committee (DCCC) and is a former chair of the New Democrat Coalition.