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Ellen Tauscher
Ellen O'Kane Tauscher (November 15, 1951 – April 29, 2019) was an American businesswoman, diplomat, and Democratic Party politician who was the U.S. representative for California's 10th congressional district from 1997 to 2009. From 2009 to 2012, she served as the Under Secretary of State for Arms Control and International Security Affairs. She then served as Special Envoy for Strategic Stability and Missile Defense at the State Department.
While in Congress, Tauscher was a leading centrist Democrat, and the chair of the New Democrat Coalition, a caucus of moderate Democrats in the House of Representatives. She also served as vice-chairwoman of the Democratic Leadership Council from 2001 to 2005.
Source: Wikipedia