It is tempting to feel relief that the Trump presidency is a mess. For those who doubt much of his agenda and worry about his lack of respect for institutions, perhaps the best hope is that he accomplishes little. That logic is beguiling, but wrong. After years of gridlock, Washington has work to do. The forthcoming summit with Xi Jinping, China’s president, shows how America is still the indispensable nation. A weak president can be dangerous—picture a trade war, a crisis in the Baltics or conflict on the Korean peninsula.
The Americans who voted for Mr Trump either overlooked his bombast, or they saw in him a tycoon with the self-belief to transform Washington. Although this presidency is still young, that already seems an error of judgment. His policies, from health-care reform to immigration, have been poor—they do not even pass the narrow test that they benefit Trump voters. Most worrying for America and the world is how fast the businessman in the Oval Office is proving unfit for the job.