Kaine was elected into a multi-member single electorate in the unicameral Australian Capital Territory Legislative Assembly, from 1989 to 2001, initially as a member of the Liberal Party and later as an independent.

[citation needed] On 29 May 1991, Kaine announced to the Assembly that members of Residents Rally had met the previous evening and decided to dissolve the Alliance, due to an internal split in the Rally party, where two of the four members chose to align themselves with the Kaine government.

[citation needed] The ACT Liberal Party lost the 1992 election, again, with a hung parliament.

The party was deregistered on 30 June 2001, and Kaine unsuccessfully contested the 2001 ACT election as an independent candidate.

[1][7][8] Trevor Kaine died on 3 June 2008, aged 80, after a long illness following a stroke he had suffered four years earlier.