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Supreme Court

How Much Deference Does SCOTUS Owe to Congress?

Should it take more than a 5–4 vote for the Supreme Court to strike down a federal law?

Damon Root | 5.14.2026 7:00 AM

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Supreme Court building with different colored boxes across it | Adani Samat/Midjourney/Gage Skidmore/ZUMAPRESS/Newscom
(Adani Samat/Midjourney/Gage Skidmore/ZUMAPRESS/Newscom)

In 1893, a Harvard law professor named James Bradley Thayer published one of the most influential articles in U.S. legal history. "The Origin and Scope of the American Doctraine of Constitutional Law" made a sweeping case for the doctrine of judicial deference, arguing that the U.S. Supreme Court was almost always out of bounds when it struck down an act of Congress for violating the Constitution. According to Thayer, a federal statute should only be invalidated on constitutional grounds in those extremely rare cases in which "those who have the right to make laws have not merely made a mistake, but have made a very clear one—so clear that it is not open to rational question."

Thayer understood that his approach, if faithfully adopted, would mostly eliminate the federal judiciary's ability to review federal laws on constitutional grounds. And he was just fine with that, since he thought federal judges should mostly butt out of such cases anyway, on account of the vast deference the judiciary owed "to the practical judgment of a legislative body."

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Thayer's hostility towards judicial review had a lasting influence on the thinking of several of the most important jurists of the Progressive and New Deal eras. "Both [Justice Oliver Wendell] Holmes and [Justice Louis] Brandeis influenced me in my constitutional outlook," Justice Felix Frankfurter declared in 1963. "But both of them derived theirs from the same source from which I derived mine, James Bradley Thayer."

I was reminded of Thayer's enduring influence the other day while reading a post by Jesse Wegman of the Brennan Center for Justice, which endorsed a version of Supreme Court "reform" that has been called a "consensus requirement." In essence, this requirement, which would be imposed on SCOTUS by Congress, would say that if the Court wanted to invalidate a congressional act, as Wegman put it, "it can't be by a one- or two-justice majority. It must be by a vote of 7–2, or 8–1, or even 9–0." According to Wegman, "the point of a consensus requirement is not to prevent the Court from deciding constitutional questions, but to make the justices work harder if they are going to strike down a law written and enacted by the people's elected representatives."

Thayer, writing in 1893, argued that SCOTUS should only strike down a congressional act when the constitutional violation "is so clear as to leave no room for reasonable doubt." Imposing a supermajority requirement on SCOTUS would be one way to bring to life in our time Thayer's vision of such a supremely limited judiciary.

But is that kind of limited judiciary really what today's liberals and progressives want? Perhaps it is, given the current 6–3 line-up of Republican and Democratic appointees on the Court. It wasn't always so, of course. When the Supreme Court struck down a key provision of the Defense of Marriage Act in United States v. Windsor (2013), the 5–4 ruling was hailed as a landmark liberal victory, no supermajority required.

And what about judicial review of the executive? If it's a good idea to require a SCOTUS supermajority to overrule an act of Congress, should it also take a SCOTUS supermajority to overrule an act of the president, who is also elected by, and democratically accountable to, the people? It seems odd to think that the Supreme Court should have more power to check the constitutional missteps of one branch of government than it has to check the constitutional missteps of the other branch.

Judicial deference has always been an idea that made for strange political bedfellows. Thayer's first followers were basically all Progressives who opposed the "reactionary" judges who ruled against their agenda. But conservatives such as Robert Bork soon became ardent Thayer-ians, too. Not so long ago, in fact, conservatives were the ones doing the loudest complaining about an "anti-democratic" judiciary thwarting the will of the people. And Trump, of course, is still loudly voicing such complaints, including against his own SCOTUS appointees.

So who knows, maybe the Democrats will gain control of Congress later this year and then persuade President Donald Trump to sign a new law requiring a supermajority vote from the Supreme Court before any act of Congress or the president may be ruled unconstitutional. In other words, today's Thayer-ians might want to be more careful about what they wish for.

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NEXT: Are Democrats Now the Party of Free Markets? Don't Bet on It.

Damon Root is a senior editor at Reason and the author of A Glorious Liberty: Frederick Douglass and the Fight for an Antislavery Constitution (Potomac Books). His next book, Emancipation War: The Fall of Slavery and the Coming of the Thirteenth Amendment (Potomac Books), will be published in June 2026.

Supreme CourtCongressConstitutionLaw & GovernmentJudicial deferenceHistoryDonald Trump
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  1. MasterThief   1 hour ago

    Root is fine with single district court judges issuing blatant partisan judgements unmoored from any legal reasoning. He cheers them attempting to direct federal domestic and foreign policy. He also cheers any time the SC rules against Trump.
    It's pretty obvious that Root isn't bothered by split decisions from the court, but hates the majority positions of the current makeup.
    He covers the courts, but somehow avoids regularly addressing how retarded KBJ is.

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  2. mad.casual   36 minutes ago

    Should it take more than a 5–4 vote for the Supreme Court to strike down a federal law?

    Should it take more than a double-digit IQ and a worthless credentials to write ignorant hot takes for Reason Magazine?

    Log in to Reply
  3. Mickey Rat   23 minutes ago

    The Media is blind to Democratic Radicalism:

    https://www.nationalreview.com/corner/the-media-remains-blind-to-democratic-radicalism/

    "...Gerstein simply cannot — or will not — contextualize these comments for his readers.

    Jackson, he notes, "did not mention any specific attacks on the judiciary."

    No. Well, she wouldn’t, would she? It’s appropriate for her to remain vague. But Gerstein is under no such obligation. He can list those “specific attacks.” He can discuss the politics around this area in as much detail as he likes. And yet, grasping around for potential candidates, he lands here — and only here:

    'Since the Supreme Court struck down a key aspect of President Donald Trump’s tariff policy earlier this year, Trump has unleashed an unusually caustic series of attacks on the three members of the court’s conservative majority who joined the liberal justices in the 6-3 ruling.

    Trump has also called for the impeachment of district court judges who have ruled against the administration on other issues, like deporting alleged gang members to a notorious anti-terrorism prison in El Salvador without due process. Those calls prompted Chief Justice John Roberts to declare publicly that he believes that judges should not face impeachment due to disagreement with their rulings.'

    All of this is true. Trump did do this, and it was disgraceful. I have no problem with Gerstein or anyone else calling it out — as I have, each time it’s happened. The problem is that this is all Gerstein can come up with as an example of the judiciary “being attacked and undermined.” That isn’t the start of the list, or a sampling of the list. That is the list. Donald Trump is where his examples begin and end. Which means that, on May 12, 2026, Gerstein searched for “specific attacks on the judiciary” — for examples, in his words, of “salvos that jeopardize its independence” — and, when his search was complete, he had found only those that had come from Donald Trump.

    That is incredible. It is astonishing. It defies belief. The last week in American politics — including while Gerstein was writing this piece and while Justice Jackson was talking yesterday — has been so thoroughly dominated by Democrats threatening to pack the United States Supreme Court, abolish the Virginia Supreme Court, and interfere with any other court that gets in their way that there has barely been room for any other news. And he can’t — or he won’t — see it."

    "In Virginia, meanwhile, the rhetoric has been even sharper. The lieutenant governor of the state, Ghazala Hashmi, has said that the state’s Supreme Court is engaged in an “assault on our democratic institutions,” while Virginia’s attorney general, Jay Jones, accused it of having “put politics over the rule of law,” fueled “growing fears across our nation about the state of our democracy,” and effected “a dangerous trend of tilting power away from the people.” Worse still, as the New York Times reported, Democrats at the federal level — including Jeffries, who will almost certainly be speaker of the House of Representatives next year — got together with Democrats in Virginia to discuss a bizarre plan to abolish the Virginia Supreme Court in retaliation against its decision:"

    'The most dramatic idea they discussed — which would involve an unusual gambit to replace the entire state Supreme Court, with a goal of reinstating their gerrymandered map — drew mixed reactions on the call, said the people, and it was not clear that it would even be viable, or palatable to Gov. Abigail Spanberger and Democrats in the Virginia General Assembly.'

    Or, apparently, to Josh Gerstein, to whom it was completely invisible, along with every single other thing that high-ranking members of the Democratic Party have said in the last few days. Somehow, Gerstein heard a member of the United States Supreme Court “defend the judicial system against salvos that jeopardize its independence,” and the only thing that he could think of was Trump. That’s telling, but it’s also pretty alarming as a harbinger of things to come."

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  4. TJJ2000   10 minutes ago

    Pfft..... "Not so long ago, in fact, conservatives were the ones doing the loudest complaining about an 'anti-democratic' judiciary thwarting the will of the people."

    What are the odds on that ?"in fact"?. 1 in a Million?

    It's no secret [D]emon-craps has consistently tried to dismantle the Constitutional Judiciary under the flag of 'democracy'.

    Conservatives? I don't think so.
    That's just yet another case of Leftard "[WE] do" Self-Projection "so it's all [R]s fault."

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