1) Iraq falls to the new Barbarians who then proceed to attack Jordan. Obama issues a stern warning with that famous facial grimace of his, says to King Abdullah of Jordan, “I've got your back”...Jordan falls after the President spends a weekend out golfing.
2) ISIS takes over Jordan and begins attacking Israel who then almost nuke them but are stopped by Pres. Obama who tells the Israelis, “I've got your back”...Israel falls but launches nukes anyways, (The Samson Option). Tehran, Damascus, Baghdad, Cairo, Mecca and even Berlin (final payback) get decimated.
3) Iran and ISIS decide to team up, now that the US let Iran develop nukes. Iran threatens the US. Naval forces of the Iranian regime, backed up by ISIS commandos approach US shores. Pres. Obama once again, sets red lines and calls out US forces but remembers at the last minute that he has won the Nobel Peace Prize. He decides to go golfing and hope the Iranian armada spotted off Nantucket sound is only an exercise.
The U.S. will switch to supporting Bashir Assad and form a coalition to wipe out ISIS.