The Supreme Court has blocked President Trump from firing Federal Reserve Governor Lisa Cook, preserving the central bank’s independence for now. In a 5-4 decision Thursday split across ideological lines, the Supreme Court blocked Trump’s attempt to become the first president to remove a Federal Reserve official since it was created in 1913.Conservative Chief Justice John Roberts and fellow conservative Justice Brett Kavanaugh joined the court’s three liberal justices to rein in Trump.Last August, Trump declared that he was booting Cook—the first Black woman on the Federal Reserve board—over claims she committed mortgage fraud with two primary residencies. Cook refused to step down, and sued, stating that “President Trump purported to fire me ‘for cause’ when no cause exists under the law, and he has no authority to do so.” A lower court ruled that Cook could not be dismissed while her case proceeded. The Department of Justice then requested that the Supreme Court stay that ruling, so that Cook could be removed from her position. The Supreme Court refused. “No matter the precise definition of cause, or the scope of our review of any such determination, the President failed to afford Cook the procedural protections to which she was entitled by statute,” wrote Roberts, who wrote the majority’s ruling.The case will now return to a lower court, where Cook will fight to save her job. Cook was appointed by former President Joe Biden, and her term was set to expire in 2038.In a separate decision Monday, the Supreme Court gave the president more power over independent agencies, ruling that Trump had the authority to fire Rebecca Slaughter. The ruling shifted quite a lot of power from Congress to the president, and has ushered in one of the largest changes to the federal government in decades.This story has been updated.