US Sues Google Over Ad Market in Escalation of Antitrust Fight

The US Justice Department and eight states sued Alphabet Inc.’s Google, calling for the break up of the search giant’s ad-technology business over alleged illegal monopolization of the digital advertising market.

“Google abuses its monopoly power to disadvantage website publishers and advertisers who dare to use competing ad tech products in a search for higher quality, or lower cost, matches,” the Justice Department said in the complaint, which was filed in federal court in Virginia. New York, California and Virginia were among the states that signed on to the complaint.

The lawsuit represents the Biden administration’s first major case ...