States are leaning toward a push to break up Google's ad tech business

Critics have said that Google bundles its ad tools so that rivals can't afford to match its offerings and that its operation of search results, YouTube, Gmail and other services hinder ad competition. Google has argued it has a slew of ad-tech competitors.

Critics have said that Google bundles its ad tools so that rivals can't afford to match its offerings and that its operation of search results, YouTube, Gmail and other services hinder ad competition. Google has argued it has a slew of ad-tech competitors.