Big tech companies have long rebuffed attempts by the U.S. federal government to scrutinize or scale back their market power.
Now they face a new coalition of antitrust enforcers: prosecutors from nearly all 50 states.
The Texas-led antitrust investigation of Google was announced Monday on the steps of the Supreme Court. It follows a separate multistate investigation of Facebook's market dominance that was revealed Friday.
Utah Attorney General Sean Reyes, a Republican, says it's an unprecedented effort by states to tackle an antitrust case involving the tech industry.