Late on Tuesday, a federal judge delivered a ruling that will be read closely in newsrooms, law offices and boardrooms alike: President Trump cannot keep news organizations out of White House coverage simply because he dislikes what they publish. The decision is provisional. It holds only until the dispute reaches a formal trial, where the underlying questions will be argued in full. The distinction matters.

A preliminary ruling of this kind does not settle the law; it preserves a status quo while the court weighs the evidence. In effect, the judge concluded that the harm of shutting reporters out could not easily be undone, while the cost of letting them stay in the meantime was small. Courts in many democracies apply a similar logic, from Brazil's Supreme Federal Tribunal to the High Court in India, whenever access to information collides with executive power. There is also a commercial dimension that is easy to overlook.

Access is an asset. A news organization with a place in the briefing room or the press pool can produce faster, richer reporting than a rival standing outside, and that advantage translates into subscriptions, advertising and audience trust. If access can be withdrawn as punishment, it becomes a lever: outlets have an incentive to soften coverage to protect their position, and the public receives a quieter version of events. Defenders of the administration's position argue that the White House is a workplace and a private residence, and that a president should decide whom to admit.