Tausi was the deputy prime minister in the government of Kamuta Latasi (December 1993 to December 1996); Deputy Prime Minister and Minister for Natural Resources and also the Home Affairs and Rural Development in the 2nd government of Bikenibeu Paeniu (1996 to 1998);[1] and after the 1998 Tuvaluan general election he moved to the Ministry of Works, Energy and Communications in the 3rd government of Paeniu.
[1] He was appointed the speaker of the parliament from 2003 to 2006 during the governments of Saufatu Sopoanga and Maatia Toafa.
Dr Falesa Pitoi, who was elected, became ill and was unable to attend parliament.
[3] In late 2013, following an assessment of Dr Pitoi's health, the governor-general declared a vacancy for the constituency of Nanumanga.
[6] Following his election, he chose to join the parliamentary majority of prime minister Enele Sopoaga.