Michael Gerson, washingtonpost.com
The Iranian supreme leader and Donald Trump have this much in common: They find their opponents to be losers.
This is bound to be one of the reasons that a clear majority of Americans and a majority of the House and Senate oppose the Iranian nuclear deal — because Iran has done everything possible to rub America’s face in Obama’s concessions. Obama was left to save the deal through a crude and partisan appeal.
The Iranian regime’s motives in all this are evident. The demonstration of U.S. impotence has been a long-term goal of Iranian public diplomacy. Their message to people across the Middle East: The United States won’t be here forever to protect you, so it is a mistake to side with them against us. ...