Lowassa is one of few groomed by one of the earliest parties, the Tanganyika African National Union party, or TANU, formed before Tanzania's independence from Britain in 1961, and later, CCMs youth wing during the days of a single-party system.
Lowassa ni mmoja wa makada wachache waliolelewa na kuandaliwa na chama cha umoja wa kitaifa au TANU ambacho ni miongoni mwa vyama cha kwanza vilivyoundwa kabla Tanzania kupata uhuru kutoka kwa Mwingereza mwaka 1961, na baadaye aliandaliwa na umoja wa Vijana wa CCM kipindi cha mfumo wa chama kimoja.