On November 14, 2019, the US DC Court of Appeals affirmed the district court decision that Trump's tax returns must be turned over to the House Ways and Means Committee. As is obvious in a case like this, the appellate court had stayed the district court decision while they considered the case. To do otherwise - i.e. to require the release of the documents while the court decided whether to compel release of the documents - would make no sense (unless one is a determined idiot).
Under Rule 13 of Supreme Court procedure, Trump would normally have 90 days to file a writ of certiori, which is a fancy name for "an argument as to why the Supreme Court should hear the case". It is not the case brief or argument, but simply a petition that states reasons why it should be taken up.
https://www.supremecourt.gov/ctrules/2019RulesoftheCourt.pdf
Rule13. Review on Certiorari : Time for Petitioning
1. Unless otherwise provided by law, a petition for a writ of certiorari to review a judgment in any case, civil or criminal, entered by a state court of last resort or a United States court of appeals (including the United States Court of Appeals for the Armed Forces) is timely when it is fled with the Clerk of this Court within 90 days after entry of the judgment. A petition for a writ of certiorari seeking review of a judgment of a lower state court that is subject to discre-tionary review by the state court of last resort is timely when it is fled with the Clerk within 90 days after entry of the order denying discretionary review.
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So, under the normal rule, that petition would not be due until
February 12, 2020 - 90 days from November 14, 2019.
Normally, in a direct conflict between two Constitutional actors - in this instance Congress and the President - a controversy will merit review by the Supreme Court. They don't have to do so, and we actually won't know until the Supreme Court considers the writ of certiori. And, again, since the case revolves around whether to compel disclosure of certain documents, it is a no-brainer that the Court would stay the decision until they see at least a writ of certiori.
What this means is that under the normal rules, Trump would not even have to file the writ of certiori until well into next year.
HOWEVER, what the Supreme Court did yesterday, as is in their power to do, was to accelerate the schedule for this case.
Instead of allowing Trump until February to file the writ, the Court has required Trump to file it next week, on
December 5, 2019.
That's a good thing. The Court has put this case on an extremely fast track, and is not going to drag this thing out.
I can't for the life of me figure out why that pisses off a contingent at DU who seem single-mindedly focused on attacking the way the US court system works. What might be motivating that kind of thing is left to your imagination.