The Trump administration is asking the Supreme Court to allow the firing of a whistleblower agency chief. Last week, a federal judge blocked President Trump’s removal of the head of the Office of Special Counsel. It’s an independent agency that protects government whistleblowers. In response, the Justice Department appealed to the Supreme Court to intervene. The case could offer a preview of how the high court will view the president’s aggressive moves to remake the federal government, including by removing heads of independent agencies.