Sen. Dick Durbin (D-Ill.) has invited Supreme Court Chief Justice John Roberts to appear before the Senate Judiciary Committee to discuss ethics reform in the judiciary following reports of Justice Clarence Thomas' undisclosed gifts and trips from a Republican megadonor. Roberts has been asked to testify on potential reforms to the ethics rules, but not answer questions from committee members. The invitation has been met with criticism, and it is unclear if Roberts will accept. The committee has set a hearing date of May 2 for the potential testimony.