Trump, Obama, Congress all to blame for Iranian policy

Difficulties with Iran will recur regularly, like the oscillations of a sine wave, and the recent crisis — if such it was, or is — illustrates persistent U.S. intellectual and institutional failures, starting with this: The Trump administration’s assumption, and that of many in Congress, is that if the president wants to wage war against a nation almost the size of Mexico (and almost four times larger than Iraq) and with 83 million people (more than double that of Iraq), there is no constitutional hindrance to him acting unilaterally.