 Muna Kubvumbi 2016, Meya weLondon uye Conservative MP Boris Johnson akapomerwa mhosva ye dog whistle racism neShadow Chancellor weExchequer uye Labour MP John McDonnell apo Johnson akataura kuti Mutungamiri weU.S. Barack Obama akabata chigumbu neUnited Kingdom nekuda kwe kusafarira kwake kwemadzitateguru eBritish Empire semugumisiro wenhaka yake ye part-Kenyan, mushure mekunge Obama ataura rutsigiro rwake kuUK kuvhota kuti varambe vari muEuropean Union pamberi pe referendamu yeUK pamusoro pehuwandu hweEU. 