Plainly, there is something in those documents that Trump dreads letting the world see. We now seem on track to one of three possible outcomes of this dispute.

The first is that precedent and law prevail. Trump loses his lawsuit against his accountants and bankers, and the subpoenaed documents are surrendered to Congress.

The second is that the political imperative to save Trump that swayed Rao will sway the conservative justices on the Supreme Court—and that Trump’s secrets will be protected by a 5–4 decision.

The third is that Trump loses—but continues to devise new delays to thwart the subpoenas and defy not only Congress but also the courts.

Every one of these possible outcomes leads to explosive controversy in the summer before the 2020 election.