Google has argued prosecutors are bending U.S. antitrust law to force it to accommodate competitors' services, and that the case is focused on incidents from years past when Google was still building and improving its offerings.
Publishers testified at trial that they could not switch away from Google, even when it rolled out features they disliked, since there was no other way to access the huge advertising demand within Google's ad network.
News Corp in 2017 estimated losing at least $9 million in ad revenue that year if it had switched away, one witness said.
If U.S. District Judge Leonie Brinkema finds that Google broke the law, she would consider prosecutors' request to make Google at least sell off Google Ad Manager, a platform that includes the company's publisher ad server and its ad exchange.