President Trump's attempt to remove Federal Reserve Governor Lisa Cook over pre-appointment mortgage allegations has been blocked by a 5-4 Supreme Court ruling on June 29, 2026, preserving her position while lower courts assess whether the claims meet the statutory "for cause" threshold required under the Federal Reserve Act. Cook, appointed in 2022 for a term through 2038, denies wrongdoing and argues the effort stems from policy disagreements on interest rates rather than misconduct. The decision reinforces judicial review of removals and Fed independence but leaves room for renewed action if due process and evidentiary standards are met in ongoing litigation. Key near-term catalysts include lower court rulings on the factual record and any further administration filings, with trader sentiment reflecting uncertainty around procedural hurdles versus potential political pressure on monetary policy.