How to delete tags on Contacts board


On our contacts board, we use tags for categorization. We changed some of our tags today, but aren’t able to delete one tag called ‘Org-Partners.’ We removed the tag from all of our contacts, but it still appears on the ‘Manage Tag’ view as having three attached contacts. And when we follow the link, it takes us to two contacts that don’t have the tag?

Is there a way to delete this mysterious tag?