Rubuta ci gaba ga wannan sakin layi - Gummer ya kasance Sakataren Majalisar Dokoki na Ministan Noma a gwamnatin Edward Heath, kafin a nada shi Mataimakin Shugaban Jam'iyyar Conservative <unk> matsayin da ya rike har zuwa faduwar gwamnati a shekarar 1974. Bayan dawowar sa zuwa Majalisar a zaben 1979, ya rike mukamai daban-daban na gwamnati kuma ya kasance Shugaban Jam'iyyar Conservative daga 1983 zuwa 1985 <unk> ofishin da ya rike a lokacin fashewar bam din Brighton
yayin taron jam'iyyar Conservative na shekarar 1984. Ya shiga majalisar a shekarar 1989 a matsayin Ministan Noma, Kifi da Abinci, ya zama Sakataren Harkokin Muhalli a karkashin John Major a shekarar 1993.