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That is the fourth and ultimate half in a series for SCOTUSblog recounting 20 years of constitutional change via the 5 editions of our casebook, the primary printed in 2008 and the newest to be printed this December.
The late Nineteen Nineties and early 2000s ushered within the Rehnquist federalism revolution, which appeared to position limits on Congress’ powers and develop these of the states. Then got here Sept. 11, 2001, and the worldwide warfare on terror, which appeared poised to develop the president’s powers. But, by 2008, Congress’ powers appeared with out significant limits and the president’s efforts to develop his personal powers had failed. And the separation of powers remained, nicely, separate. However, the following 20 years would vastly enlarge the president’s powers as Congress’ authority over the manager department can be vastly diminished.
Late-breaking modifications for the legislative energy
Many of the chapter on legislative powers has remained the identical since our textbook’s first version was printed in 2008. The Rehnquist court docket’s federalism revolution hit a roadblock three years earlier. Gonzales v. Raich, which Barnett argued, halted the progress made by United States v. Lopez and United States v. Morrison. These circumstances discovered limits on Congress’ powers to control weapons in class zones and home violence via the commerce clause. However Raich upheld Congress’ powers to control domestically grown marijuana. The second version from 2013 ushered in NFIB v. Sebelius. This case held that the Reasonably priced Care Act’s particular person mandate exceeds Congress’ powers underneath the commerce and mandatory and correct clauses, however the penalty implementing the mandate may very well be saved as a constitutional tax.
No additional modifications have been made within the following editions. Certainly, it appeared to each of us that the justices have been unwilling to look extra carefully on the scope of federal enumerated powers. However this yr’s version introduces two sudden enumerated powers circumstances. Landor v. Louisiana Department of Public Safety and Corrections clarified the connection between the spending energy and the required and correct clause. As a normal matter, Congress can solely make state officers topic to fits for cash damages if the legislation complies with the required and correct clause. Landor dominated that the Religious Land Use and Institutionalized Persons Act doesn’t present a personal reason behind motion for financial damages towards state officers who didn’t consent to go well with, as such a legislation will not be a “correct” train of federal energy. We additionally included Justice Clarence Thomas’s concurrence in United States v. Hemani, which proposed tightening the so-called “jurisdictional hook” evaluation. He would require a more in-depth match between interstate commerce and a regulated exercise.
The long run appears to be like promising for a reconsideration of enumerated powers.
The contracting and increasing govt energy
In March 2008, when the primary version of our casebook was printed, the Supreme Courtroom was primarily occupied by President George W. Bush’s world warfare on terror. The primary version of the casebook included Hamdi v. Rumsfeld and Hamdan v. Rumsfeld. These circumstances rejected early challenges to the detention of suspected terrorists at Guantanamo Bay. In June 2008, the court docket would conclude the trilogy with Boumediene v. Bush, which held that the writ of habeas corpus runs to that jail facility.
However that case can be a fleeting flash, as the worldwide warfare on terror pale from relevance – no less than jurisprudentially. Furthermore, most first-year legislation college students have been born after Sept. 11, 2001, and haven’t any dwelling reminiscence of the occasions that gave rise to the battle in Afghanistan. What appeared so vital within the decade after 9/11 has waned considerably in prominence earlier than the court docket.
The realignment of the separation of powers
Maybe essentially the most important revisions throughout 5 editions of the casebook got here within the context of the separation of powers. Labeling these circumstances is difficult. Instances not solely transfer out and in of the canon but in addition shift in how they’re perceived. Many circumstances began out underneath the label of separation of powers – because the court docket enforced the stability of authority between the branches – however now may be thought-about govt energy circumstances.
Solely three separation-of-powers circumstances have survived all 5 editions. First, United States v. Nixon required the president to adjust to a subpoena for the Watergate tapes. Second, Morrison v. Olson rejected a problem to the impartial counsel statute. And third, Clinton v. Jones held {that a} sitting president is topic to a civil go well with for conduct that arose earlier than his time period started. We contemplated at some size whether or not to retain Morrison, because it has largely been supplanted by Trump v. Slaughter. This 2026 determination formally overruled 1935’s Humphrey’s Executor v. United States and allowed the president to take away members of sure impartial companies.
Three Burger court docket staples have been dropped. Dames & Moore v. Regan upheld the president’s suspension of claims arising from the Iran hostage disaster. Nixon v. Fitzgerald dominated that former President Richard Nixon was immune from go well with for sure actions taken whereas in workplace. INS v. Chadha rejected the so-called “one home” veto, or the power of both chamber of Congress to stop an motion by the manager department. Within the Nineteen Eighties, these circumstances have been landmark selections. Over time, nevertheless, their relevance pale. Nonetheless, as mirrored in Justice Neil Gorsuch’s concurrence in Learning Resources v. Trump, the 2026 tariffs case, Chadha’s impact has been magnified because the court docket has ceded extra energy to the president over govt department companies, whilst these delegations have been initially enacted with legislative vetoes.
Three selections from the early Roberts court docket shortly entered and left the chat. Trump v. Slaughter changed Free Enterprise Fund v. PCAOB and Seila Law v. CFPB. These circumstances, which rejected makes an attempt to restrict the president’s removing powers, merely misplaced relevance. NLRB v. Noel Canning was an essential case in regards to the unique which means of the recess appointments clause, nevertheless it has turn out to be largely out of date because the previous three presidents have used different means to make short-term appointments.
President Donald Trump has been essentially the most consequential president for the Supreme Courtroom’s separation-of-powers jurisprudence since Franklin D. Roosevelt. 5 circumstances bearing his title now seem within the separation-of-powers chapter. Trump v. Vance, which involved the president’s tax returns, was added earlier than the fourth version went to press. The fifth version now offers a Trump quartet. Trump v. United States expanded the scope of presidential immunity from the Nixon period. Trump v. Slaughter, as famous, eventually overruled Humphrey’s Executor, as Morrison v. Olson stays in a zone of twilight. Trump v. Cook reaffirmed the Federal Reserve’s independence. And Studying Sources, Inc. v. Trump invalidated the president’s tariffs. These circumstances, Slaughter particularly, will probably set off a whole era of latest circumstances in regards to the separation of powers. Who is aware of what the sixth version will carry?
For simple reference, this desk illustrates which circumstances have been added and dropped throughout the 5 editions of our casebook. A checkmark signifies continued protection.

Conclusion
As much as the fourth version of our casebook in 2022, constitutional legislation adopted a considerably predictable arc. To make sure, there have been shifts to the left and to the correct, however the doctrine may very well be defined by a coherent narrative: the New Deal settlement on federal energy was untouchable; the court docket would supply solely modest protections for federalism; the executive state was past reproach; makes an attempt to single out unpopular teams can be halted; “benign” racial classifications have been permitted; and church and state have been strictly separated. Now, every side of this narrative has been reconceived. The 5 years since that version appeared have introduced essentially the most modifications to constitutional legislation because the Warren court docket.
We started this collection by observing that legal professionals are inclined to internalize the constitutional legislation that existed once they attended legislation college. The identical is true of legislation professors. Just about all legislation professors as we speak got here of age in a time of stasis. They might safely assume that the trajectory of the Warren court docket would proceed indefinitely. However the jurisprudence of the Burger and Rehnquist courts was primed for a reversal, simply because the Warren court docket reversed so many precedents from earlier than. Finally, the Roberts court docket continues to chip away at precedents from the Seventies and Nineteen Eighties, even when the precedents from the Nineteen Sixties and earlier than stay.
Many of those professors have struggled to deal with sudden modifications within the doctrine. Some have voiced their despair of instructing constitutional legislation in any respect. Unsurprisingly, their college students additionally battle to deal with these developments. This pattern is regrettable. Our function as casebook editors, and constitutional legislation professors, is to information college students via all the corpus of constitutional legislation, from the framing to the current day, with none nostalgia for, or bias towards, occasions passed by.