Chief Justice John Roberts declines to appear at Senate judiciary hearing

John Roberts, the US supreme court chief justice, has declined to testify at a forthcoming hearing before the Senate judiciary committee that is expected to focus on judicial ethics.

The committee’s Democratic chairman, Dick Durbin, had asked the chief justice to appear before the panel to address potential reforms to ethical rules governing the justices. The senator cited “a steady stream of revelations regarding justices falling short of the ethical standards”.

Roberts’ brief response, issued by a supreme court spokesperson, said he would “respectfully decline” the invitation. In a letter to Durbin, Roberts said such appearances by chief justices were exceedingly rare given concerns about the separation of powers between the branches of US government and the “importance of preserving judicial independence”.

Durbin had earlier asked Roberts to investigate ties between Justice Clarence Thomas and a wealthy Republican donor.

Thomas, the longest-serving of the court’s nine justices, has been under pressure after published reports by the news outlet ProPublica detailing his relationship with Harlan Crow, including real estate purchases and luxury travel paid for by the billionaire Dallas businessman.

In a statement on Tuesday, Durbin said: “I am surprised that the chief justice’s recounting of existing legal standards of ethics suggests current law is adequate and ignores the obvious. The actions of one justice, including trips on yachts and private jets, were not reported to the public. That same justice failed to disclose the sale of properties he partly owned to a party with interests before the supreme court.”

The Senate judiciary committee would proceed with a 2 May hearing as planned, according to Durbin.

“It is time for Congress to accept its responsibility to establish an enforceable code of ethics for the supreme court, the only agency of our government without it,” Durbin said.