Nyorai kupfuurira kweiyi ndima - Thomson akabatana neScottish National Party pazera ramakore gumi namatanhatu muna 1981. Akava akakurumbira mune zvematongerwe enyika panguva yeScottish independence referendum campaign
, ne"Hongu" mushandirapamwe. Akasarudzwa senhengo yeParamende yeEdinburgh West muna 2015 aine huwandu hwevhoti 3,210 uye 39% yevhoti; nekukwira kwe25.8% kubva kuLiberal Democrat kuenda kuSNP. "The Sunday Post" yakamurondedzera somumwe wevamiriri veSNP kuti vatarise muparamende itsva. "The National" yakatsanangura Thomson se"mweya mutsva" muchiedza chechiitiko chake cheupenyu chakakura.