Obama's ineptitude was a contributing factor in the Middle East mess

NY Times:

How Saudi Arabia and Iran Tore Apart the Middle East

The history of two nations’ rivalry, including the Sunni-Shiite sectarianism both sides have cultivated, point to a future of civil wars, scholars warn.

His retreat from Iraq set the stage.  His perfidy in Syria plus his disastrous agreement with Iran put the US in the position of funding both sides of the net Middle East war between Iran and Saudi Arabia and probably Israel.