President Trump is moving forward with a renewed attempt to remove Federal Reserve Governor Lisa Cook from the Board, less than six weeks after the U.S. Supreme Court blocked his first effort in a 5-4 ruling issued June 29, 2026.

The Supreme Court's June 29 decision halted what had been an unprecedented exercise of presidential power: no president had previously sought to remove a Federal Reserve governor in the manner Trump pursued against Cook. The ruling affirmed lower-court interventions that had kept Cook in her seat throughout the litigation. A U.S. district judge had first temporarily blocked the removal in September 2025, and lower courts consistently barred Cook's ouster before the Supreme Court took up Trump's bid in January 2026.

Trump's initial attempt to fire Cook came in August 2025, when he cited unproven mortgage fraud allegations as grounds for removal. Cook denied the allegations. She then sued Trump and the Federal Reserve, arguing that the allegations did not confer legal authority on the president to remove her and were a pretext. That lawsuit marked the first time a sitting president tested the removal framework for a Federal Reserve governor in this fashion.

The specific legal architecture at stake centers on the protections afforded to Federal Reserve governors under the Federal Reserve Act. Governors serve 14-year terms, staggered to insulate monetary policy decisions from political pressure. The statute provides that governors may be removed "for cause," a standard that has historically been interpreted to require demonstrable misconduct or neglect of duty, not mere policy disagreement. Cook's legal team contended that the mortgage fraud allegations Trump cited did not meet that threshold and were invoked retroactively to justify a removal already decided on other grounds.

Cook, the first Black woman to serve as a Federal Reserve governor, joined the Board in 2022. Her position on the seven-member Board of Governors places her among the Federal Open Market Committee's voting members, meaning any removal would directly alter the composition of the body that sets the federal funds rate target range. With the FOMC's decisions rippling through every corner of the economy, from mortgage rates to credit card APRs to the yield on savings accounts, a politically motivated removal would carry consequences well beyond institutional politics.

The Supreme Court's 5-4 split signals that the legal question is far from settled. The narrow majority suggests the Court's reasoning may have turned on procedural grounds, the specific adequacy of the allegations as cause for removal, or the broader separation-of-powers doctrine that has shielded independent agencies since Humphrey's Executor v. United States in 1935. A one-vote margin on a question of this magnitude gives a determined executive branch reason to believe a second attempt, refined with different factual predicates or legal theories, might succeed.

The mechanics of Trump's renewed effort remain to be detailed, but the decision to press forward despite a Supreme Court loss introduces a new variable into what is already an unsettled period for Federal Reserve governance. The central bank's credibility rests in significant measure on the perception that its policy decisions reflect economic data and professional judgment, not political directives. An ongoing, public confrontation between the White House and a sitting governor, unresolved through two rounds of litigation, does not strengthen that perception.

For markets, the practical question is whether the renewal of removal proceedings injects uncertainty into the FOMC's deliberative process. Governors are not easily replaced. Even if a removal eventually succeeded, the confirmation process for a successor would take months, potentially leaving the Board short-staffed during a period when monetary policy decisions carry unusually high stakes. An FOMC operating with fewer than its full complement of governors still sets rates, but the breadth of internal debate narrows, and the legitimacy of close votes becomes easier to question.

The lower courts have so far treated Cook's removal as impermissible. The Supreme Court, by a single vote, agreed. Trump's decision to try again does not change the law, but it does extend the duration of an institutional confrontation that the central bank would prefer to have resolved.