I don’t know of any RP supporters now in the Cruz camp. Maybe Ron supporters jumped over to Cruz, but I would not count on them showing up on election day en masse.
Republican Liberty Caucus Leader Switches Support From Paul to Cruz http://www.freerepublic.com/focus/f-news/3379522/posts
Ted Cruz is wooing voters who favored rival Rand Paul’s father, and it’s working
http://www.freerepublic.com/focus/f-news/3359815/posts