A federal judge on Wednesday blocked President Donald Trump’s renewed attempt to limit birthright citizenship, partially halting an executive order the president issued after the Supreme Court struck down his more sweeping effort last year.

US District Judge Deborah Boardman said the administration could not enforce the new, more limited policy, but the judge is allowing the agencies to continue to work on guidance on how they would carry out.

In the opinion accompanying the preliminary injunction, she wrote that the new policy was likely unconstitutional under the Supreme Court ruling this summer striking down Trump’s earlier attempt to end birthright citizenship.

Her order applies to the certified class of legal challengers in the case, which are any children who would have been denied citizenship under the first executive order.

The White House slammed it as “just another ruling from an activist judge appointed by (Joe) Biden attempting to thwart President Trump’s commonsense agenda.”