Rubuta ci gaba ga wannan sakin layi - Ya kasance Clerk na Crown tun 1732, voivode na Podole Voivodship tsakanin 1736 da 1762 (tare da rata tsakanin 1750 da 1756). A shekara ta 1735 ya sami lambar yabo ta White Eagle. Wani jarumi ne mai jaruntaka, tun daga 1752 ya rike mukamin Hetman na Crown. Castellan na garuruwa da yawa masu daraja, ya kasance muhimmin ɗan siyasa a Fadar Sarauta a Warsaw kuma yana ɗaya daga cikin manyan magoya bayan liberum veto a lokacin Diet na 1764, lokacin da ya zama sananne saboda jayayyarsa da Szymon Konarski. A lokacin Diet na 1767 (Repnin Sejm
) ya yi adawa da Yarima Nikolai Repnin - jakadan Rasha a Commonwealth - yana tsoma baki cikin harkokin cikin gida na Poland. A sakamakon haka, wakilan Rasha sun sace shi tare da dansa Seweryn da wasu fitattun 'yan siyasa biyu na Poland kuma aka daure su a Kaluga. Bayan da aka sake shi a watan Afrilu 1773 an daukaka shi saboda nasarorin da ya samu zuwa matsayin Grand Crown Hetman, amma ya yi murabus daga mukamin a watan Nuwamba na wannan shekarar.