Examining the Durability of Trump’s Deals: Supply Lines

With US negotiators heading to Pakistan again to hash out a deal to either extend a ceasefire with Iran or the terms of a more enduring peace, the world again is pondering President Donald Trump’s deal-making prowess.

The view of Trump’s supporters is, of course, that the president is a master deal maker. Every escalation or threat, his backers say, is about leverage on the way to an agreement that will serve American interests. In Trump’s world everything is up for negotiation. The process may even matter more than the end result.

But after almost a decade of watching Trump ...