President Donald Trump fired the two Democratic commissioners at the U.S. Federal Trade Commission on Tuesday, two sources familiar with the situation said, in another major test of the independence of regulatory agencies.

The Trump administration appears to be preparing to comply with multiple court orders to quickly place tens of thousands of federal workers fired during their probationary periods, according to officials at three agencies briefed on the plans.

Two federal judges have handed down orders requiring President Donald Trump’s administration to rehire thousands, if not tens of thousands, of probationary workers let go in mass firings across multiple agencies.