Supreme Court Justice Brett Kavanaugh told a judicial conference on Thursday he hopes there will be “concrete steps soon” to address recent ethics concerns surrounding the court, but he stopped short of addressing calls for justices to institute an official code of conduct.

“We can increase confidence. We’re working on that,” Kavanaugh told the conference attended by judges, attorneys and other court personnel in Ohio. He said all nine justices recognize that public confidence in the court is important, particularly now.

Public trust in the court is at a 50-year low following a series of divisive rulings, including the overturning of Roe v. Wade federal abortion protections last year, and published reports about the justices’ undisclosed paid trips and other ethical concerns.

“There’s a storm around us in the political world and the world at large in America,” Kavanaugh said. “We, as judges and the legal system, need to try to be a little more, I think, of the calm in the storm.”

Justice Clarence Thomas acknowledged recently that he took three trips last year aboard a private plane owned by Republican megadonor Harlan Crow even as he rejected criticism over his failure to report trips in previous years.

Reporting by the investigative news site ProPublica also revealed that Justice Samuel Alito failed to disclose a private trip to Alaska he took in 2008 that was paid for by two wealthy Republican donors, one of whom repeatedly had interests before the court.