Tehran will want to cover not just its contested nuclear program but also developments in Iraq, the conflicts of the Levant and a prospective Persian Gulf security system. To the Islamic Republic, such a broad-based platform would have the advantage of prolonging the process while signaling to its Arab competitors that the United States acknowledges Iranian centrality in stabilizing the Middle East. As a state with pretensions of preeminence, Iran will maintain that none of the region’s conflicts can be resolved without its participation and consent.