US states’ merger role tests limits of cooperative federalism, DOJ official says
By Flavia Fortes ( September 15, 2026, 20:13 GMT | Insight) -- US antitrust enforcers are confronting the limits of cooperative federalism in merger control, as state challenges to transactions increasingly risk colliding with federal enforcement decisions, a senior Justice Department official said.US antitrust enforcers are confronting the limits of cooperative federalism in merger control, as state challenges to transactions increasingly risk colliding with federal enforcement decisions, a senior Justice Department official said....
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