Power in Washington doesn't always wear a cape or deliver prime-time speeches. Most of the time, it wears black robes and works in quiet, high-security courtrooms away from the cameras. Judge Rosemary M. Collyer was the embodiment of that quiet, immense power. When she passed away on June 7, 2026, at the age of 80 from ovarian cancer in Rockville, Maryland, the legal world lost one of its most independent minds.
You might not know her name, but her decisions completely shaped the modern American state. She was the federal judge who called out the FBI for lying to get wiretaps. She was the one who handed the House of Representatives a massive victory against the Obama administration over the funding of Obamacare. She determined whether the government could designate massive financial corporations as "too big to fail" after the 2008 financial crisis.
People are searching for the details of her death. But the real story is what she left behind in the federal archives. Her career spanned over seventeen years on the U.S. District Court for the District of Columbia and seven years on the hyper-secret Foreign Intelligence Surveillance Court. She was a powerhouse. She didn't care about partisan politics. She cared about the rules.
The Secret World of the FISA Court
To understand her impact, you have to look at her time on the United States Foreign Intelligence Surveillance Court, often called the FISA court. Chief Justice John Roberts appointed her to this bench in 2013. By 2016, she was the presiding judge.
The FISA court operates under strict secrecy. It deals with national security wiretaps, espionage, and counterintelligence. For years, critics called it a rubber stamp for the executive branch. Collyer changed that narrative completely in late 2019.
The Department of Justice had just released a blistering Inspector General report detailing systemic failures in how the FBI handled wiretap applications for Carter Page, a former campaign adviser to Donald Trump. The FBI had botched it. They omitted critical facts, included unverified dossier information, and even altered an email.
Collyer didn't sit quietly. She issued a rare, public, and absolutely devastating order rebuking the FBI. She wrote that the agency's handling of the Page wiretap applications was antithetical to the institutional trust required by the court. She ordered the bureau to completely overhaul its verification procedures. It was a massive moment. A Republican-appointed judge openly hammered an agency under a Republican administration, proving her ultimate loyalty belonged to the Constitution, not a political party.
Striking at the Heart of Obamacare
If you want to understand her legal philosophy, look at her 2016 ruling in House of Representatives v. Burwell. This case was a constitutional bomb.
House Republicans sued the Obama administration, arguing that the executive branch was illegally spending billions of dollars on cost-sharing subsidies under the Affordable Care Act. The administration argued that Congress had already implicitly authorized the spending.
Collyer disagreed. She ruled that the administration had spent billions without a specific appropriation from Congress. In her view, the text of the Constitution was unambiguous. The power of the purse belonged to the legislature alone. The executive branch couldn't just bypass Congress because it was convenient or because the law was a signature legislative achievement.
The ruling threatened to dismantle the financial foundation of Obamacare. She stayed her own ruling pending appeal, which allowed the program to keep running while the legal battle played out. This move showed her practical side. She understood the chaos an immediate shutdown would cause for millions of Americans, yet she refused to compromise on the underlying constitutional principle.
Breaking Glass Ceilings in Washington Law
Long before George W. Bush nominated her to the federal bench in 2002, Collyer was busy making history in fields dominated entirely by men. She graduated from Trinity College in 1968 and earned her law degree from the University of Denver in 1977.
Look at her resume before the judgeship. President Ronald Reagan appointed her as the chairman of the Federal Mine Safety and Health Review Commission in 1981. She was the first woman to hold that job. Three years later, Reagan picked her to be the General Counsel of the National Labor Relations Board. Again, she was the first woman to break that barrier.
When she went back to private practice in 1989, she joined Crowell & Moring LLP. By 1995, her peers elected her as the firm's chair. This made her the first woman to lead a major, top-tier Washington law firm.
She didn't get these jobs to make a point. She got them because she was a relentless, sharp labor lawyer who knew how to manage massive, complex organizations. Her background in administrative law gave her an edge on the bench. She understood exactly how federal agencies worked, which meant bureaucrats couldn't easily pull the wool over her eyes.
Drones and the Outer Limits of Executive Power
Collyer also found herself at the center of the post-9/11 war on terror legal battles. She presided over cases involving Guantanamo Bay detainees who alleged horrific torture by American officials.
More notably, she handled the fallout from the targeted drone killings of American citizens abroad. She presided over a lawsuit brought by the families of Anwar al-Awlaki and Samir Khan, two U.S. citizens killed by drone strikes in Yemen in 2011. The families argued that the Obama administration had violated the constitutional right to due process by executing American citizens without a trial.
It was an agonizingly difficult case. On one hand stood the fundamental rights of American citizens. On the other stood the war-making powers of the commander-in-chief in an era of global terrorism.
Collyer ultimately dismissed the lawsuit. She ruled that judges should not micromanage the military or national security decisions of the executive branch in an active theater of foreign operations. But she didn't do it with a shrug. Her opinion made it clear that the case raised profound and troubling constitutional questions. She noted that the executive branch holds terrifying power when it can target its own citizens for death without judicial review, yet she concluded that the law did not allow her court to grant a remedy. It was a classic display of judicial restraint. She recognized the limits of her own power even when dealing with an issue that clearly troubled her.
Erasing the Too Big to Fail Label
In another massive regulatory showdown, Collyer took on the Financial Stability Oversight Council, an entity created by the Dodd-Frank Act after the 2008 financial crash. The council had designated MetLife as a systemically important financial institution. This label meant MetLife was "too big to fail" and subjected the insurance giant to crushing federal supervision and capital requirements.
MetLife sued. In 2016, Collyer delivered a stunning blow to the federal regulators. She rescinded the designation.
She stated that the government's process for labeling MetLife was fatally flawed and arbitrary. The council had failed to perform a proper risk assessment or calculate the actual economic cost of the regulations it was imposing. It was a masterclass in administrative law. She forced the federal government to meet a higher standard of transparency and analytical rigor before taking control of private enterprises.
Her Final Legacy
Collyer took senior status in 2016 and stopped hearing cases altogether in 2020 as her health declined. Her long battle with ovarian cancer ended this summer in Maryland.
She wasn't someone who chased the spotlight. She didn't write breathless memoirs or go on cable news networks to defend her record. Instead, she focused heavily on mentoring the next generation. Her law clerks went on to hold major positions throughout the American legal system.
Before her death, she teamed up with two of her former classmates from the University of Denver Sturm College of Law, Debra Lappin and Kris Hoeltgen. Together, they endowed the Study Group Scholarship for Women in Law through the Denver Foundation. She wanted to ensure that future women lawyers had the financial backing to climb the same steep hills she had climbed decades earlier.
If you want to honor her career or follow in her footsteps, skip the generic legal commentaries. Look directly at her actions. Crowell & Moring LLP is hosting a celebration of her life on July 18, 2026, at 2 p.m. Memorial contributions can be sent directly to her scholarship fund at the Denver Foundation. Read her 2019 FISA order. Study her opinion on congressional appropriations. She showed that the best way to defend the law is to apply it evenly, fearlessly, and without regard for who wins or loses the political news cycle.
