A Manhattan federal magistrate judge on Tuesday ruled that CNN, for now, would not have to turn over privileged reporting notes behind an article linking U.S. Rep. Devin Nunes, R-California, to an alleged plot to pressure Ukrainian officials to investigate former Vice President Joe Biden.

The ruling dealt a setback to Nunes, a staunch ally of President Donald Trump, who sued CNN for defamation over a story it aired Nov. 22 that placed Nunes at the center of the plot, which spurred impeachment proceedings against the president.