West Malaysia went to the polls on 10 May, while Sabah was scheduled to vote on 25 May and Sarawak on 7 June. The Alliance won 10 seats in Sabah on nomination day being unopposed in some constituencies, so after the West Malaysian elections they were assured of a clear majority of 76 out of a total of 144 parliamentary seats. Tun Mustapha Datu Harun's United Sabah National Organisation (Usno) won 10 out of 16 seats unopposed for the Alliance on nomination day.