Yeah I am not a lawyer so hard to say. I think... How I read it... Is that the states are not necessarily "nullifying" Biden's executive orders... More like they are creating their own for their own state which may fight against such absurd executive orders by their design.

With that said I didn't do much reading into the North Dakota or South Dakota reports of them trying to nullify his orders but it seems like with this one in Oklahoma... He's creating his own executive orders for his own state.

Kind of like Biden punches and the state jabs.