Register Taxonomy Rewrite Slug

I have a taxonomy registered called ‘news-states’ with values of NSW ACT. (I also have a cpt called news).

When I rewrite the taxonomy as follows:

"rewrite" => array(
                            'slug' => 'news',
                            'with_front' => false,
                            "hierarchical" => true
        )

It doesn’t work. But if I change the slug to news2 it does. Is this because the cpt is called news? is there a way I can make this work?