White House refuses to comment on Obama letter to Iran

White House spokesman Josh Earnest said on Thursday that US policy towards Iran has not changed. Earnest was responding to questions about a letter reportedly sent from US President Barack Obama to Iran's Supreme Leader Ayatollah Ali Khamenei.

The Wall Street Journal reported on Thursday that Obama sent a letter to the Iranian leader last month describing their shared interested in the fight against the Islamic State. Earnest said he could not comment on private correspondence between Obama and a world leader.