[1] Whitworth was elected to the Idaho Senate in 1994, defeating Republican Karen McGee.
[8] 2006 Whitworth was elected to the Bannock County Commission as a Democrat.
2008 Whitworth was defeated for reelection in the Democratic primary by Karen Cordell.
2014 Whitworth was unopposed in the Democratic Primary for Idaho Senate District 28.
[9] Whitworth withdrew on June 30, 2014, leaving incumbent Jim Guthrie (politician) unopposed.