Complex sentence: Ellen O'Kane Tauscher (born November 15,1951) was a Democratic member of the United States House of Representatives, representing California's 10th congressional district from 1997 until her resignation in 2009 upon joining the State Department.
Split into simpler sentences: Ellen O'Kane Tauscher (born November 15,1951) is an American politician. She was a Democratic member of the United States House of Representatives, representing California's 10th congressional district from 1997 until her resignation in 2009 upon joining the State Department.