Many of the arguments were familiar to any Google trial watcher. The DOJ argues Google used a suite of ad tech products, particularly Doubleclick For Publishers (DFP) and the AdX

Google, already facing a possible breakup of the company over its ubiquitous search engine, is fighting to beat back another attack by the U.S. Department of Justice alleging monopolistic conduct, this time over technology that puts online advertising in front of consumers.

The DOJ said that Google "rigged" ad auctions in a way that hurt the competition in its closing arguments at an antitrust trial, but it isn't clear how the US District Court Judge will rule.