A Shiite Muslim political leader said Friday that rumors were circulating of an impending coup attempt against the government of Iraqi Prime Minister Nouri al-Maliki and warned that "we will not allow it." A new government would mean "canceling the constitution, canceling the results of the elections and going back to square one . . . and we will not accept that," he said. Amiri is also a top official in the Badr Organization, the armed wing of the Supreme Council for the Islamic Revolution in Iraq, which is the leading member of a coalition of Shiite political parties governing...