A federal judge ruled on Monday that a $37 billion merger between the health insurance providers Aetna and Humana should not be consummated on antitrust grounds, siding with the Justice Department, which had been seeking to block the deal.
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The court “mostly agrees” with the government’s argument that the deal would lessen competition for Medicare Advantage plans and health insurance sold on public exchanges, Judge John D. Bates of the Federal District Court for the District of Columbia said in the ruling.