By being in Iran, he prevents Israel from attacking Iran’s nuclear facilities. The longer he keeps the date uncertain, the more difficult it is for Israel to schedule an attack.
Obama has effectively isolated Israel. Obama has sold Israel down the river for less than a bowl of lentils. And the American Jews are ecstatic. As long as American Jews can keep playing the harlot to liberalism they will willingly and cheerfully allow their brethren to face a different type of holocaust.