He already is, although I don’t think marijuana is the big reason:
Ted Cruz Reportedly Winning Over Some Rand Paul Supporters in Iowa
http://www.freerepublic.com/focus/f-news/3271921/posts
Ted Cruz Recruits Some Rand Paul Supporters in Iowa
http://www.freerepublic.com/focus/f-news/3271518/posts
Cruz wins the Reagan crowd with his strong on national defense, and America strong position which, as we can see, is going to be all important, very soon, and our current weakness is placing us in the position of losing ground globally, while our enemies are building and expanding.
Things are getting scary not just in the mess in the Middle East, but also in Europe and Asia, even in Latin America.