All living former chairmen of the Federal Reserve signed a letter urging the Supreme Court to protect the independence of the Federal Reserve.

Over the past 35 years, the main economic policy makers in the United States, including all living former Federal Reserve chairs, have urged the Supreme Court to allow current Federal Reserve Board member Lael Brainard to continue serving. A friend-of-the-court brief warned that allowing her to be removed while her legal challenge is ongoing would signal a damaging erosion of the safeguards established by Congress 90 years ago to protect the independence of the executive branch. The signatories of the brief cited studies showing that central banks can lower inflation and long-term interest rates by setting rates without considering short-term political factors. The brief was signed by former Federal Reserve chairs Greenspan, Bernanke, and Yellen. The 18 signatories also include former presidents' advisors from both Republican and Democratic administrations, as well as major economists from different ideological backgrounds such as former Treasury Secretaries Robert Rubin and Lawrence Summers, and former Chairs of the Council of Economic Advisers Glenn Hubbard and Greg Mankiw.