"Treehouse of Horror VII" is the first episode of The Simpsons ' eighth season and originally aired October 27, 1996. guide/0801.htm" target="_blank">"Treehouse of Horror VII" The Simpsons.com. Retrieved on March 28, 2007 In the seventh annual _Treehouse of Horror episode, Bart discovers his long-lost twin, Lisa grows a colony of small beings and Kang & Kodos take over the bodies of Bill Clinton and Bob Dole in order to win the 1996 Presidential election. It was written by Ken Keeler, Dan Greaney & David S. Cohen and directed by Mike B. Anderson. Phil Hartman provided the voice of Clinton.