The Constitution of Iraq does not require three deputies to the President or VP’s. There must be at least one and there may be more, but constitutionally speaking no change is necessary. Article 66, Second, states as follows : “A law shall regulate the nomination of one deputy or more for the President of the Republic.” Abadi tried to do away with all VP’s and failed. Historically there have been three, one each from Shia, Sunni and Kurdish factions.