FTA:
“The court denied without comment special counsel Jack Smith’s request asking the justices to circumvent the normal appeals court process and quickly decide the question, which looms large in Trump’s prosecution in Washington over allegations of election interference.”
It applies because the Supreme Court usurped the authority of the NLRB by intervening prior to its ruling on the issue. In this case, the Supreme Court is avoiding that problem by ensuring the immunity claims proceeds through the judicial system as expected.