The Supreme Court on Friday dashed President Donald Trump’s plan to immediately fire the head of an independent agency that investigates whistleblower claims, allowing Hampton Dellinger to remain in the job through at least the middle of next week.

The Trump administration fired Hampton Dellinger, head of the Office of Special Counsel, who sued to overturn the decision.

The court’s order indicated that it may return to the issue as soon as next week, when a trial judge’s temporary restraining order is set to expire.