After the assassination of Benazir Bhutto, Zardari reaffirmed his disinterest in the prime ministership.[36][37] Chairman Zardari and Mian Nawaz Sharif, leader of the PML-N, along with some smaller political parties, joined forces in an electoral coalition that won a heavy majority in the elections and unseated Musharraf's ruling PML-Q. After the election, he called for a government of national unity, and divided cabinet portfolios among coalition partners on proportionate basis .[38] Asif Ali Zardari and former Pakistani Prime Minister Nawaz Sharif said on February 21, 2008 that their parties would work together in the national parliament after scoring big wins in the election.[39] On 5th March 2008 Mr Zardari was cleared of five corruption charges[40], including corruption and illegal use of property under NRO, the National Reconciliation Ordinance[41] He had another trial on the remaining charges on 14 April 2008, when he was cleared under the same NRO[42]. On 19 April 2008 Zardari announced in a press conference in London that he and his sister, Faryal Talpur, would participate in the by-elections taking place on 3 June and that, if necessary, he would contest to become the country's next Prime Minister, even though his party voted by a 2/3 majority to announce that Yousaf Raza Gillani would be the PM for a five year term