Nyaya yokuti Mambokadzi kana kuti gavhuna mukuru ndiye mukuru wehurumende yeAustralia yakava yezvematongerwe enyika mumakore akapfuura referendamu yeRepublic yeAustralia muna 1999
. Pakati pezvikonzero zvakaperekedzwa mumushandirapamwe iwoyo, zvimwe zvaiva zvokuchengetwa kwehofisi yegovernor-general somumiririri (nomuzita) wamambo, uye zvimwe zvaiva zvomusoro wenyika anosarudzwa navanhu. VaRepublicans vakabatanidza mumushandirapamwe wavo pfungwa yokuti Mambokadzi ndiye mukuru wehurumende uye kwete weAustralia uye, saizvozvo, anofanira kutsiviwa nemugari weAustralia; izvi zvakagadziriswa mumutsara wavo "mukadzi wemusoro wehurumende". Vanoshora danho rokuita kuti Australia ive republic vanotaura vachipindura kuti Australia yatova nomunhu wokuAustralia somusoro wenyika mubati mukuru, uyo, kubvira muna 1965, ave ari mugari weAustralia nguva dzose. Gavhuna mukuru muna 2004, Major General Michael Jeffery, panguva iyoyo akati: "Mambo ndiye mukuru wehurumende yeAustralia asi ini ndiri mumiririri wake uye ndinoita zvose zvandinogona kuti ndiite basa racho". Zvisinei, gore rakatevera racho, akaramba kudana Mambokadzi somusoro wenyika, panzvimbo pezvo achipindura mubvunzo wakananga, "Mambokadzi ndiye mambo uye ini ndinomumiririra uye ndinoita mabasa ose emusoro wenyika". Gavhuna mukuru anowanzomiririra Australia kune dzimwe nyika, achiita nekugamuchira kushanya kwehurumende, asi Mambokadzi anoitawo mamwe mabasa epamutemo anomiririra Australia kunze kweAustralia, senge kuUnited Kingdom.