Simpson-Miller had been under some pressure to step down as opposition leader ever since the People's National Party (PNP), under her leadership, lost the general elections in February 2016.
Simpson-Miller alikuwa chini ya msongo wa kutoka madarakani kama kiongozi wa upinzani tangu Chama cha Taifa cha Watu (PNP), chini ya uongozi wake, alipoteza uchaguzi mkuu mnamo Februari 2016.