Keep It Steady and Cool with Iran, America

And keep pumping that American oil and gas.

Expect more desperate Iranian efforts to prompt a U.S. military response in the Persian Gulf. Trump’s sanctions have cut off 90 percent of Iran’s oil revenues. Soon Tehran’s shattered economy will be followed by more pent-up domestic unrest of the sort that Barack Obama ignored in 2009, when he felt that the continued viability of the murderous theocracy fed his bizarre dreams of enhancing a new Shiite, Persian hegemony to counterbalance the Sunni Arabs.

In contrast, America’s newfound role as the largest...