The first 100 days of Donald Trump’s presidency have brought some good news and some bad news. The good news is that, albeit chaotically, he is governing more as an orthodox post-Reagan Republican than most expected. The bad news is that he is governing more as an orthodox Republican than most expected. This now seems true in all the main policy areas, both domestic and international. It is clearly true in economic policy.

The idea of rebuilding US infrastructure has faded. The trade protectionism looks halfhearted. But deregulation is still an objective. So is tax reform, with the familiar combination of unfunded giveaways and magical thinking on deficits. Mr Trump’s policies look ever more like Reagan’s, but from a more unfavourable starting point.

In announcing the tax plan, the White House did in an essential respect reinforce experience with this administration. It is hard to think of another government that would announce radical reforms of the tax system in a one-page document as sketchy as this one. It would be laughable if it were not so damaging to the US reputation for competent policymaking. The plan must be dead on arrival in Congress, in large part because it is not alive in the first place.