Editors can review and approve stories.
If a contributor only has author permissions, they can cannot publish stories directly to a Chorus site. They will need to submit stories for review.
You can find submitted stories on the dashboard by selecting the Submitted status in the search sidebar. After reviewing a story, head to the Finalize screen to approve or reject it.
Once a story is approved, it can be published or scheduled by the author, or anyone with publishing permissions on your site.
Rejecting a story will make it a draft again, and the author will not be able to publish without submitting it for another review.