Following constitutional reforms, in 1984, the office of State President became an executive post, as in the United States. The Prime Minister's post was abolished, and its powers were "de facto" merged with those of the State President. He was elected by an electoral college of 88 members—50 Whites, 25 Coloureds, and 13 Indians–from among the members of the Tricameral Parliament. The members of the electoral college were elected by the respective racial groups of the Tricameral Parliament—the white House of Assembly, Coloured House of Representatives and Indian House of Delegates. He held office for the Parliament's duration—in practice, five years. The last Prime Minister, P. W. Botha, was elected as the first executive State President.