Cruz apologized for not sending out a retraction once CNN changed its story but that would have been virtually impossible to do since the caucuses had already started by then. In the story you linked, however, CNN lied about what it was reporting that night. That is why you need to watch the video.
Exactly and their tweet, not the moody tweet, the LEAD CNN tweet CLEARLY said he wasn’t going to NH OR SC, then today cnn said they NEVER said he wasn’t going to NH