Meanwhile, the Islamic State is
likely to go on pretty much as it has for the last year or two, after
losing almost all of the area of its former caliphate in Iraq and Syria.
If al-Baghdadi has a successor, he will be, like al-Baghdadi himself, a
caliph without a caliphate. The Islamic State is still very much a
presence around the world, but doesn’t control any significant expanse
of territory, as it did when Barack Obama was President.