sentences:  President Nursultan Äbishuly Nazarbayev nominated Massimov to succeed Daniyal Akhmetov as Prime Minister on 9 January 2007.The Nur Otan party endorsed Massimov's candidacy and Parliament confirmed the nomination on 10 January.On 24 September 2012, Massimov's premiership ended when President Nazarbayev dismissed him as from the position, appointing him chief of staff of the presidential office in order to readjust the power balance between various factions within the government.