The unilateral abandonment of an agreement involving the principle world powers effectively positions the U.S. as an unpredictable, and therefore barely trustworthy, partner.
[T]he nuclear deal with Iran is, indeed, in no way perfect. Destroying it, however, is the riskiest of all options.
In the minds of many, the U.S. administration hates the Iran deal because it was created and signed under Obama.
As a president, Trump acts exactly the same as he did when he was a businessman. He remains a gambler, and his presidency is a singular, giant bet.
Arguably, if anyone has the right to complain, it is Iran.
If the U.S. leaves the nuclear deal it is likely that Iran will as well.