Sen. Sheldon Whitehouse (D-RI) has an idea about how to hold Supreme Court justices accountable for improper gifts: go through the Judicial Conference, the federal body that sets guidelines for how the courts operate. Whitehouse outlined his ideas in a lengthy thread on X, which came following reports that Justice Clarence Thomas — already under fire for failing to disclose lavish gifts paid for by billionaires with potential business before the court — took three more previously undisclosed private jet trips with right-wing megadonor Harlan Crow. “The law is that the Judicial Conference must …