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US state attorneys general increasingly active in merger enforcement in 2025

By Flavia Fortes ( December 24, 2025, 14:00 GMT | Comment) -- US state attorneys general are emerging as increasingly assertive and independent actors in merger enforcement, reshaping the antitrust landscape amid a more politicized federal review environment. States are also passing their own merger control legislation for broad, industry-agnostic premerger notification, opening the door for more risk and enforcement in 2026.State-level attorneys general are becoming significant and increasingly assertive players in merger enforcement, often acting as independent antitrust enforcers rather than merely supporting federal agencies as they have done in the past....

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