A federal judge has ruled Thursday that President Donald Trump acted illegally when he fired a member of an independent labor agency, and the judge ordered that she be allowed to remain on the job.

A federal judge said Gwynne Wilcox must remain at the agency that oversees relations among workers, labor unions and employers, setting up a Supreme Court showdown over presidential powers.

A judge's ruling reinstating NLRB board member Gwynne Wilcox sets the stage for a battle over the agency's future, which could end up at the Supreme Court.

President Donald Trump’s firing of the former chairwoman of the National Labor Relations Board was an “illegal act,” a federal judge ruled Thursday, overturning her ousting in a decision that was highly critical of Trump’s “intent on pushing the bounds of his office.

Gwynne Wilcox can return to the National Labor Relations Board after a federal judge reversed President Donald Trump’s termination of her.

The ruling, which the Trump administration immediately moved to appeal, was a rebuke of Mr. Trump’s expansive view of executive power.