Cannon went to an event in Arlington, Virginia. honoring the late Supreme Court Justice Antonin Scalia, according to documents obtained from the Law and Economics Center at George Mason University. At a lecture and private dinner, she sat among members of Scalia’s family, fellow Federalist Society members and more than 30 conservative federal judges. Organizers billed the event as “an excellent opportunity to connect with judicial colleagues.”

A 2006 rule, intended to shine a light on judges’ attendance at paid seminars that could pose conflicts or influence decisions, requires them to file disclosure forms for such trips within 30 days and make them public on the court’s website.

It’s not the first time she has failed to fully comply with the rule.

In 2021 and 2022, Cannon took weeklong trips to the luxurious Sage Lodge in Pray, Montana, for legal colloquiums sponsored by George Mason, which named its law school for Scalia thanks to $30 million in gifts that conservative judicial kingmaker Leonard Leo helped organize.

Current rates for standard rooms at Sage Lodge can exceed $1,000 per night, depending on the season. With both Montana trips, Cannon’s required seminar disclosures were not posted until NPR reporters asked about the omissions this year as part of a broader national investigation of gaps in judicial disclosures.

Cannon did not respond to repeated requests for comment.

In response to questions from ProPublica, the clerk in the Southern District of Florida wrote in an email that Cannon had filed the Sage Lodge trips with the federal judiciary’s administrative office but had “inadvertently” not taken the second step of posting them on the court’s website. She explained that “Judges often do not realize they must input the information twice.”

The clerk said she had no information about the May 2023 banquet.

“Judges administer the law, and we have a right to expect every judge to comply with the law,” said Virginia Canter, chief ethics counsel for the watchdog group Citizens for Responsibility and Ethics in Washington.

Cannon’s husband, Joshua Lorence, a restaurant executive, accompanied her to the 2021 and 2022 colloquiums, which featured noted conservative jurists, lawyers and professors as well as lengthy “afternoon study breaks,” according to records obtained by ProPublica. Cannon emailed university staff to submit airport parking expenses and inquire about rental car reimbursement.

The rule for paid seminars is among the policies set by the Judicial Conference. Federal judges are also required by law to file annual financial disclosures, listing items such as assets, outside income and gifts.

Cannon’s annual disclosure form for 2023, which was due in May and offers another chance to report gifts and reimbursements from outside parties, has yet to be posted. (Cannon reported the two Montana trips on her annual disclosure forms, but the required 30-day privately funded seminar reports had not been posted. In 2021, Cannon incorrectly listed the school as “George Madison University.”)

The court’s administrative office declined to say if she requested a one-time extension to give her until Aug. 13 to file. A spokesperson would not discuss whether she met the deadline or the status of her disclosure, which must be reviewed internally.

Cannon’s performance during almost four years of a lifetime appointment has drawn criticism from lawyers, former federal judges and courtroom observers who told ProPublica that she doesn’t render timely decisions and has made unpredictable rulings in both civil and criminal matters. On July 15, she threw out the case brought by Special Counsel Jack Smith that alleges Trump mishandled classified documents at his Mar-a-Lago residence; Cannon called Smith’s appointment unconstitutional since he was not nominated by the president and approved by the Senate.

Smith is appealing to the 11th U.S. Circuit Court of Appeals, and Citizens for Responsibility and Ethics in Washington has asked the court to remand her decision and replace her.

By contrast, Trump, who appointed Cannon in 2020 to the Fort Pierce courthouse, has praised her brilliance, and Federalist Society founder Steven Calabresi called her a heroine for throwing out the criminal case against Trump.

For decades, judicial education programs sponsored by George Mason’s Law and Economics Center have drawn in 5,000 state and federal judges and four current Supreme Court justices, according to its website. The school says its programs strive for balance and intellectual rigor. But conference agendas and speaker lists that the university must file with the courts detail lectures and panel discussions built around Federalist Society principles that are associated with conservative legal movements.

Ken Turchi, associate dean for external affairs, said the law school plays no role in judicial disclosures. “Judges’ decisions to submit (or not submit) disclosure forms are theirs alone — it’s a self-reporting process,” he said.

The guest list for the May 2023 Scalia Forum included William H. Pryor Jr., chief judge of the 11th Circuit, which is now hearing Smith’s appeal. Pryor and dinner speaker Kyle Duncan, a 5th Circuit judge, did file their required disclosures for the Scalia dinner.

Pryor’s court has overruled Cannon twice in the Trump case. It sided with the government in September 2022 on a motion for a stay and found that it “had established a substantial likelihood of success on the merits.” In December 2022, it ruled that she erred in naming a special master to examine classified documents seized from Mar-a-Lago. After that decision, Cannon had to dismantle an expensive operation set up by her special master, a senior federal judge in New York.

Gabe Roth, who directs Fix the Court, a nonprofit judicial reform group, said compliance with the privately funded seminar rule has improved in some circuits since his group pressed for compliance with the Administrative Office of the Courts.

“They’re a more effective way for litigants and the public to get a sense of what types of individuals and groups a judge might be hanging out with and learning from,” he said.

Records show that Cannon submitted minor reimbursement requests related to the Scalia Forum trip after she returned, including the 158 miles she drove round trip to the airport. She inquired with George Mason staff about details for an Alaska excursion recommended by a former lawyer in the Trump-era White House Counsel’s Office.

Cannon registered for George Mason’s Hill Country Colloquium at a Texas resort in December 2023 but had to back out for scheduling reasons.

“I hope to join that event, and others, in future years,” she wrote.