Trump is about to make a mistake four times larger than the Iraq War. Jason Rezaian on three things the U.S. stands to lose if it ditches the Iran deal. Trump’s hard line on Iran nuclear deal may spur “cycle of escalation”: Tehran has no reason to negotiate further deals or amendments with a government that has proven untrustworthy. Navid Hassibi on why Trump supports diplomacy with North Korea but not Iran. Tobias Schumacher on the long-suffering Europeans trying to save the Iran deal. Hussein Ibish on why an attempt to fix, not nix, the Iran nuclear deal with the help of Europe is Trump's only sensible option.

How Trump’s mixed signals complicate America’s role in the world: President Trump’s inconsistent responses to Iran and North Korea risk conveying a very different message to the world than the one he may wish to send.