The US Supreme Court has issued a landmark decision that significantly expands presidential authority over independent regulatory agencies while simultaneously blocking the Trump administration’s attempt to remove Federal Reserve Governor Lisa Cook.

The 6-3 ruling upholds the president’s power to fire heads of most independent agencies but carves out a critical exception for the central bank, reinforcing the statutory protections that shield the Fed from direct political removal.

Markets reacted swiftly to the clarification of institutional boundaries.

The decision alleviates concerns that the administration could exert direct control over monetary policy through personnel changes, a risk that had been weighing on rate-sensitive assets.

By confirming the Fed’s operational independence, the ruling reduces the premium investors have been attaching to political uncertainty in the rate path.

This development follows closely on the heels of the Court’s earlier ruling that Governor Cook may remain in her post, effectively blocking the initial removal attempt.