Elizabeth Dole, former US Senator from North Carolina - Having served many roles in federal government, Elizabeth Dole started out as Duke University's Student Body President before graduating in 1958. As a Democrat, she worked for the Johnson Administration in 1968. She switched her party affiliation to Independent when Nixon became president and continued to work for the White House. In the mid-70's, before marrying Senator Bob Dole, she switched her party registration once again, becoming a Republican. She went on to serve in the Reagan and Bush administrations before being elected to the US Senate in 2002.