Complex sentence: She was the United States Secretary of State from 2009 to 2013, the junior United States Senator representing New York from 2001 to 2009, and First Lady of the United States during the presidency of Bill Clinton from 1993 to 2001.
Split into simpler sentences: She was the United States Secretary of State from 2009 to 2013. From 2001 to 2009, Clinton was a United States Senator from New York, and was previously First Lady of the United States during the presidency of Bill Clinton from 1993 to 2001.