Rubuta ci gaba don wannan sakin layi - An haife shi a Sindh na zamani kuma ya yi karatu a Jami'ar California, Berkeley da Jami'ar Oxford, Bhutto ya horar da shi a matsayin lauya a Lincoln's Inn, kafin ya shiga siyasa a matsayin daya daga cikin 'yan majalisar Shugaba Iskander Mirza, kuma an ba shi ma'aikatun da yawa a lokacin mulkin soja na Shugaba Ayub Khan daga 1958. An nada Ministan Harkokin Waje a 1963, Bhutto ya kasance mai goyon bayan Operation Gibraltar a Kashmir, wanda ya kai ga yaki da Indiya a shekarar 1965. Bayan Yarjejeniyar Tashkent ta kawo karshen tashin hankali, Bhutto ta yi karo da Ayub Khan kuma an kore shi daga gwamnati. Bhutto ta kafa jam'iyyar PPP a shekarar 1967 a kan tsarin gurguzu, kuma ta yi takara a babban zaben da Shugaba Yahya Khan ya gudanar a shekarar 1970. Yayin da Awami League ta lashe mafi yawan kujeru gaba daya, PPP ta lashe mafi yawan kujeru a Yammacin Pakistan; jam'iyyun biyu ba su iya amincewa da sabon kundin tsarin mulki ba musamman kan batun Harkar Batun shida wanda mutane da yawa a Yammacin Pakistan suka ga wata hanya ce ta raba kasar. Tashin hankali na gaba ya haifar da rabuwa da Bangladesh, kuma Pakistan ta rasa yakin
a kan Indiya mai kawancen Bangladesh a shekarar 1971. An ba Bhutto shugabancin a watan Disamba na 1971 kuma an sanya dokar ta baci. Lokacin da Bhutto ya fara sake gina Pakistan, ya bayyana aniyarsa ita ce "sake gina amana da sake gina bege ga nan gaba".