The fate of Google’s search business is now in the hands of Judge Amit Mehta, as closing arguments concluded in the landmark trial on Friday. The Department of Justice and plaintiff states made their last arguments Thursday on Google’s alleged anticompetitive conduct in the general search market,

The government and Google made closing arguments in a high-stakes antitrust trial to a federal judge, who must now decide whether the tech giant’s search engine constitutes an illegal monopoly.

Google and the U.S. Justice Department wrapped up closing arguments on Friday over claims that the Alphabet unit has unlawfully dominated web search and related advertising, in a case the government contends could shape the “future of the internet.