A U.S. judge on Saturday declared President Donald Trump's firing of the head of a federal watchdog agency illegal in an early test of the scope of presidential power likely to be decided at the U.S.

The federal judge’s decision blocks Trump from removing Hampton Dellinger as head of the Office of Special Counsel and sets up a likely Supreme Court battle over the president’s powers.

A federal judge on Saturday ruled that President Trump’s firing of the head of an office designed to protect government whistleblowers was unlawful.  U.S. District Judge Amy Berman Jackson ruled