U.S. lawyers said that Google is "once, twice, three times a monopolist," while Google's lawyers claimed the DOJ proved "the exact opposite" of a monopoly. Next, Judge Leonie M. Brinkema will decide whether the case has merits.

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

The DOJ said that Google is "once, twice, three times a monopolist" in its final arguments in the ad tech monopoly case.

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.