For my part, I simply cannot abide the majority’s senseless discarding — Ketanji Brown Jackson

"DOJ... insists that, despite the fact that ordinary citizens bring subpoena-enforcement claims in the federal courts all the time, duly authorized committees of the House of Representatives cannot proceed against the Executive branch in court to seek enforcement of subpoenas for testimony and information issued to recalcitrant government officials in the context of congressional investigations. ... Meanwhile, says DOJ, the President has the authority to make unilateral determinations regarding whether he and his senior-level aides (both current and former) will respond to, or defy, the subpoenas that authorized House committees issue during constitutionally authorized investigations of potential wrongdoing within his administration. ...11"

"Unfortunately for DOJ... these contentions about the relative power of the federal courts, congressional committees, and the President distort established separation-of-powers principles beyond all recognition. Thus, ultimately, the arguments that DOJ advances to support its claim of absolute testimonial immunity for senior-level presidential aides transgress core constitutional truths..."

"[W]hen a committee of Congress seeks testimony and records by issuing a valid subpoena in the context of a duly authorized investigation, it has the Constitution’s blessing, and ultimately, it is acting not in its own interest, but for the benefit of the People of the United States. If there is fraud or abuse or waste or corruption in the federal government, it is the constitutional duty of Congress to find the facts and, as necessary, take corrective action."

"The United States of America has a government of laws and not of men. The Constitution and federal law set the boundaries of what is acceptable conduct, and for this reason... when there is a dispute between the Legislature and the Executive branch over what the law requires about the circumstances under which government officials must act, the Judiciary has the authority, and the responsibility, to decide the issue."

"This Court holds that Executive branch officials are not absolutely immune from compulsory congressional process—no matter how many times the Executive branch has asserted as much over the years—even if the President expressly directs such officials’ non-compliance."

"Thus., when presented with a case or controversy, it is the Judiciary’s duty under the Constitution to interpret the law and to declare government overreaches unlawful. Similarly, the House of Representatives has the constitutionally vested responsibility to conduct investigations of suspected abuses of power within the government, and to act to curb those improprieties, if required. Accordingly, DOJ’s conceptual claim to unreviewable absolute testimonial immunity on separation-of-powers grounds—essentially, that the Constitution’s scheme countenances unassailable Executive branch authority—is baseless, and as such, cannot be sustained."