Erin Burnett OutFront –

Stanley McChrystal: There's shared blame for ISIS war

Who is to blame for the rise of ISIS? Is it President Obama for not keeping troops in Iraq? Or President Bush, who signed the deal agreeing to American troop withdrawal? The 4 star General who led counterinsurgency in Iraq and Afghanistan, Stanley McChrystal weighs in.

McCain claims victory in policy fight with Carney