>Kind of wild that states can just sue and have success in blocking a merger. Any of 50 states can potentially have a veto on something like this? On what grounds?

This isn't a permanent injunction, the judge simply paused the merger for two weeks while they can hold a hearing on a longer injunction ahead of a trial

And even that injunction wouldn't be permanent, it would just keep the transaction from completing until the trial is complete, since obviously if they merge it is hard to unwind should Paramount lose

And yes, states can "just sue" to enforce the law, just like the DOJ could have sued to enforce the law. Antitrust is not a criminal matter, but this is essentially the same thing as filing charges