White House refuses to `` get into the specifics , '' administration official says . The U.S. has been trying for months to persuade Russia and China not to block a U.N. Security Council resolution that would condemn Israeli settlements in occupied territories. The Obama administration has `` made it clear that any real dialogue -- multilateral or bilateral -- needed to be authoritative , '' according to the senior administration official . Sources : Ayatollah Ali Khamenei has n't replied to letter sent before June 12 election . Khamenei made an indirect reference to letter in sermon last week .
White House refuses to `` get into the specifics , '' administration official says . The U.S. has been trying for months to persuade Russia and China not to block a U.N. Security Council resolution that would condemn Israeli settlements in occupied territories. Sources : Ayatollah Ali Khamenei has n't replied to letter sent before June 12 election . Khamenei made an indirect reference to letter in sermon last week .