BAGHDAD — Iraq's prime minister said Thursday his Sunni-backed rivals, who narrowly won the March election, were wasting their time trying to form a new government, in a remark sure to raise tensions. Shiite Prime Minister Nouri al-Maliki accused the winning Iraqiya list headed of delaying the political process, even though it was the premier himself who mounted a series of challenges to the results postponing the final tally. "I say to our brothers in Iraqiya list: you are wasting your time and delaying the political process," al-Maliki told the independent daily Al-Mada. Iraqiya won 91 of 325 seats in parliament over 89 for al-Maliki's bloc.