The American nation has labeled Iran a principle source of terrorism in the world.
The
Supreme Leader of Iran is the head of state and highest ranking political and religious authority in the Islamic Republic of Iran.
Iran's current Supreme Leader is Ali Khamenei.
The number two man in Iran is its, President Hassan Rouhani, who was required to obtain the permission of Khamenei in order to even be eligible to run for the office he currently holds.
Apparently, someone suggested that Iran's number two, Rouhani, should chat with our number one, Obama. Obama, agreed.
Rouhani then backs out and leaves Obama with his "hand out for a shake" that never came.
Some say the symbolism of such things is irrelevant.
I disagree.