Whakaotihia te rerenga e whai ake nei: I mua i te haere ki te kura ture, i tīmata a Demissie i tana mahi tōrangapū i te mahi i te kaupapa perehitini a John Kerry i te tau 2004. I mahi ia i Iowa, i mahi hoki hei kaiwhakahaere mara Georgia i etahi wa i te kaupapa. I roto i te 2008 United States pōtitanga peresideni mahi Demissie tuatahi i runga i te pakanga o Hillary Clinton i roto i te Democratic tuatahi. Ka ngaro a Clinton i ngā pōtitanga tuatahi ki a Barack Obama. I te wā o te pōtitanga whānui, i mahi ia hei kaiwhakahaere pōti mō te pōtitanga o Ohaio mō te pōtitanga o Obama
pakanga, i taua tūranga mai i Akuhata 2008 tae noa ki te pōtitanga o Whiringa-ā-rangi.