Will someone save Trump from this disastrous decision?

President Trump inherited a Middle East convulsed by crisis and civil war with two fragile exceptions: the Israeli-Palestinian conflict and Iran’s nuclear program, both of which were quiescent. With two impulsive, egotistical decisions, taken against the strong recommendations of his national security team, he has endangered the status quo on both fronts. Now the question is whether Congress or European allies will save him from a potentially disastrous third strike.

The similarities between Trump’s refusal to recertify the Iranian nuclear deal in October and his decision to recognize Jerusalem as Israel’s capital last week are striking — and revealing. In each case, he was presented with a congressionally mandated requirement to renew a policy of previous presidents. His secretaries of defense and state urged him to preserve it, lest he disrupt U.S. policies and endanger U.S. interests across the Middle East and beyond.

Each time, Trump bridled — essentially flipping over the table and insisting he would not do what Barack Obama or George W. Bush or Bill Clinton would have done. He made no secret of the fact that his primary — maybe his sole — motivation was to prove that he was a different and somehow better president. “Previous presidents . . . failed to deliver,” he boasted in announcing the Jerusalem move. “I am delivering.”