A federal judge has blocked the $6.2 billion merger between local television giants Nexstar Media Group and Tegna until an antitrust lawsuit is resolved.

President Donald Trump has endorsed Nexstar Media Group’s $6.2 billion purchase of broadcast rival Tegna in an apparent reversal from his earlier criticism of the deal.

Nexstar Media Group is buying broadcast rival Tegna for $6.2 billion, bringing together two major players in U.S. television and the country’s local news landscape.