 Fritz Kuhn was one of the two federal chairpersons of Alliance '90/The Greens from 2000 to 2002, first together with Renate Künast, then with Claudia Roth.He resigned from that office in October 2002 after having been elected as a member of the Bundestag, the parliament of the Federal Republic of Germany.There was a rule in the Green Party in those days that you could not be an MP and hold a party office at the same time.