Bre ɔsan n’akyi baa amanyɔsɛm mo no, Yankson kɔpree mmarahyɛ bagua no wɔ amanyokuo National Democratic Congress din mu ma no di nkunim wɔ abatoɔa ekɔɔ so wɔ afe 1992 mu, ɔbɛyɛɛ mmarahye baguani a ogyina hɔ ma Agona Atɔe Mantam mu. Okuraa mmarahye begua agua no me wɔ abatoɔ a ɛkɔɔ so wɔ afe 1966 no mu ne mprenu no so. Wɔ bre a Rawlings aban no baa ne mprenu soɔ no, wodikan paw no sɛ Soafo a ɔhwɛ MfinfiN Mantam so.