Closing arguments in the remedies trial concerning the U.S. Department of Justice's case against Google's advertising technology business concluded on November 21. A federal judge is deliberating on how to address Google's two identified monopolies in this sector, following a ruling in April 2025 that declared Google holds two illegal monopolies within the advertising technology realm. The DOJ is advocating for the divestiture of Google's ad marketplace platform, AdX, which Google argues may present significant technological challenges. Judge Leonie Brinkema has acknowledged the urgency of the situation while recognizing the complexities introduced by Google's anticipated appeals. Google has presented expert testimonies highlighting the difficulties of breaking up its ad tech business, while the DOJ argues that such a breakup is necessary for a more competitive environment. The court's decision could have broader implications for the advertising technology landscape and digital competition.