The federal government’s biggest antitrust trial against a tech giant since it took on Microsoft in the late 1990s is scheduled to open Sept. 12. Who has the best case? Hard to say. We’re leery whenever the government intrudes into a marketplace, and this case is no slam-dunk. Google is accused of anticompetitive behavior in its core web browser business. And even though Google and its fellow tech giants have been flaunting monopolylike power for years now, this lawsuit’s tortured history doesn’t fill us with confidence. In what smelled like an attempt to win quick political points, the Trump ...