ISLAMABAD: The Pakistan People’s Party on Sunday openly claimed the slot of opposition leader in Senate, saying that being the largest party on the opposition benches in the upper house of the parliament, the slot of the opposition leader should be given to it.Former prime minister and senior vice president of Pakistan Democratic Movement Raja Pervaiz Ashraf said that with 21 senators in the upper house, the PPP was the single largest opposition party in Senate and it believed that, in...