The Justice Department cleared Paramount’s acquisition of Warner Bros. on June 12, 2026, finding the transaction was unlikely to substantially lessen competition in traditional television markets. But the federal green light may be only the beginning. California, New York, and other states are reportedly preparing their own challenge, creating the prospect of a high-stakes showdown over how aggressively state enforcers can police deals the federal government declines to stop.

That split is what makes this story especially significant.