An Uncertain Future

Ian Bremmer, president of the Eurasia Group, argues that the deal with Iran is better than no deal even though he doesn’t expect Iran to stick to its side of the bargain, even though he thinks “the arbitration mechanisms will be challenging,” and even though he expects no one to be as interested in reimposing sanctions in the future as the United States will be.

It’s a tough case to make, and he admits that it’s a close call, but his upbeat argument is more worth reading than most because he...