The United States will hold the regime in Tehran accountable for any attack that results in injury to our personnel or damage to United States Government facilities. America will respond swiftly and decisively in defense of American lives.

Full statement from here:

Over the past few days, we have seen life-threatening attacks in Iraq, including on the United States consulate in Basra and against the American embassy compound in Baghdad.  Iran did not act to stop these attacks by its proxies in Iraq, which it has supported with funding, training, and weapons.

The United States will hold the regime in Tehran accountable for any attack that results in injury to our personnel or damage to United States Government facilities.  America will respond swiftly and decisively in defense of American lives.