tehran - Iran's Ayatollah Ali Khamenei rejecting further negotiations with the United States down . The highest spiritual leader of the country said Wednesday , three months after Tehran after three years negotiating a nuclear treaty signed with the Americans. He has the treaty , a political victory for President Rohani , incidentally, never endorsed publicly .
In an address to the Revolutionary Guards said Iran ayatollah the treaty only brings disadvantages.
Negotiations only the Americans have brought opportunities for their economic, cultural and political influence, he said. "Even during the negotiations, they were trying to harm our national interests when they do so the chance", said Khamenei.