Introduction
Summary reversals were once a regular feature at the U.S. Supreme Court.
 The Court’s internal rules permit them,
 and the leading treatise on litigating before the Court discusses them at length.
 A “summary reversal” refers to the Court’s custom of wiping away a decision by a lower court without the usual, lengthy process of receiving briefs, hearing oral argument, and issuing a written opinion, on the theory that the decision was plainly wrong.
 Although this practice has evolved over time, summary reversals are announced today by means of generally short, unsigned opinions tucked into the end of weekly order lists handling procedural issues.
 
Recently, however, summary reversals have become a rare occurrence. During the first fifteen annual Terms of John Roberts’s tenure as Chief Justice, the Court summarily reversed an average of seven lower court decisions per Term.
 Typically, the Roberts Court has reserved this treatment for decisions granting post-conviction relief to people who are incarcerated and denying qualified immunity to police and prison officials.
 During the last four Terms, by contrast, there has been an average of one summary reversal per Term, and in one Term there were zero.
 
There is plenty of discussion of summary reversals in the literature,
 including in early discourse around the so-called “shadow docket.”
 Lately, the shadow docket has become a hot topic. Since the first Trump Administration, scholars, practitioners, and politicians have regularly criticized the Court’s emergency orders responding to a flood of requests to wade into high-profile disputes on the shadow docket, particularly in terms of transparency and accountability.
 But with all the focus on the uptick in emergency orders, there has been little to no focus on the downturn in summary reversals, previously the shadow docket’s bread and butter.
 
This Note explores the recent decline of summary reversals. Part I provides background on these rulings, including how they work today and their evolution throughout the twentieth century. Part II then places the recent decline of summary reversals in context. It examines their scarcity both at the Court and in the discourse since 2021. And it highlights the litigants most affected by a future with fewer summary reversals: people who are incarcerated, especially those sentenced to death; people who are hurt or killed by police or prison officers, as well as their families; and law enforcement officials.
 
Finally, Part III discusses possible explanations for the recent decline of summary reversals. The simplest explanation might be one of limited resources. The Court’s merits docket—on which it decides cases with signed, written opinions after full briefing and oral argument—is shrinking.
 Meanwhile, the Justices face a barrage of time-consuming requests for emergency relief on the shadow docket.
 What’s more, over the same period during which summary reversals have slowed to a trickle, an increasing portion of the Court’s dwindling merits docket has been devoted to deciding cases on the heels of expedited briefing and oral argument in response to requests for emergency relief on the shadow docket.
 
The rise of expedited argument can probably be traced to criticism of the shadow docket and specifically the outrage after the Court’s cursory order upholding Texas’s six-week abortion ban on September 1, 2021.
 But skeptics of the shadow docket—and of summary reversals, specifically—have long questioned the Court’s wisdom in entertaining requests to correct errors in individual disputes, as opposed to resolving circuit splits and wading into the occasional case of national importance.
 Perhaps summary reversal is proving rarer because the Court is responding, in some fashion, to this criticism.
 
Another possible explanation for the decline of summary reversals is the appointment of Justice Amy Coney Barrett. Since she joined the Court in 2020, Justice Barrett has expressed skepticism toward ruling on the merits of cases before they are briefed and argued.
 And although—like most cases decided on the merits docket
—most summary reversals do not divide the Court along ideological lines,
 they do generally require six votes, as opposed to the usual bare majority of five.
 For lower court decisions that the Court’s conservative majority considers glaringly wrong, Justice Barrett may be less inclined than her five Republican-appointed colleagues to provide a sixth vote to quickly erase them. And for decisions that the three liberal Justices might wish to summarily reverse, the Court’s conservative supermajority—cemented by Justice Barrett’s confirmation—makes it difficult to secure the needed votes.
 
Finally, the Supreme Court is not the only court becoming more conservative. The cascade of judges appointed during President Donald Trump’s first term has reshaped all levels of the federal judiciary.
 And Republicans have gained control of a swath of state supreme courts nationwide.
 Lower courts laden with Republican-appointed or - elected judges might issue fewer decisions that the six Republican-appointed Supreme Court Justices view as plainly wrong, warranting summary reversal. This is particularly salient for the two most common types of decisions summarily reversed by the Roberts Court: those granting post-conviction relief to people who are incarcerated and those denying qualified immunity to police and prison officials,
 both ideologically liberal outcomes.
 
Summary reversals at the Court might return in full force someday. But even if their recent decline is temporary, it is noteworthy, both for what it says about rapidly changing procedural norms at the Court and for its impact on litigants who seek to undo lower court decisions that leave them out to dry.