The approach is likely to involve a combination of small steps to initiate contact between the two countries and may include an overture in the form of a letter to Iran’s Supreme Leader Ayatollah Khamenei, according to Western diplomats and senior US officials. A senior Western diplomat, speaking on condition of anonymity, told reporters that he expected the letter to be sent to Mr Khamenei before the Iranian elections this summer, although Washington’s allies would prefer this step to be taken after the vote, to avoid influencing the election. Last week a State Department spokesman said he did not have anything to say about a letter, adding that he would not discuss the options being considered. He then referred reporters to the White House.