Justice Department’s antitrust chief says she’s leaving, effective immediately

The head of the Justice Department’s antitrust unit said Thursday she is leaving the role, effective immediately, at a critical moment for corporate mergers in America.

Gail Slater, the Assistant Attorney General of the Antitrust Division, wrote on social media site X: “It is with great sadness and abiding hope that I leave my role as AAG for Antitrust today.”

Slater continued, “It was indeed the honor of a lifetime to serve in this role. Huge thanks to all who supported me this past year, most especially the men and women of” the Department.

The White House referred questions about Slater’s departure to the Justice Department, which did not immediately reply to a request for comment.

Slater’s departure comes just as media giants Netflix and Paramount Skydance battle for control of Warner Bros. Discovery.

President Donald Trump had initially said he was going to get involved in review of whichever Warner Bros. deal proceeds, an uncommon occurrence in antitrust matters.

But in an interview with NBC News, Trump slightly changed his tune. “I’ve been called by both sides, it’s the two sides, but I’ve decided I shouldn’t be involved,” the president said.

“The Justice Department will handle it.”

Trump has met with executives from both of Warner Bros.’ bidders.

Slater’s exit also comes weeks before the Justice Department heads to court in a bid to challenge concert venue manager Live Nation’s ownership of Ticketmaster.

When Slater was confirmed by Congress, 78 Senators on both sides of the aisle voted in her favor. Only 19 voted against her confirmation.

On Tuesday, Slater’s deputy in the antitrust division also departed.

Mark Hamer, Deputy Assistant Attorney General of the Antitrust Division, wrote on LinkedIn that he “decided the time is right for me to return to private practice.” He praised Slater as a “leader of exceptional wisdom, strength and integrity.”

This is a developing story. Please check back for updates.