The answer to your question is in my original post. The very next sentence in fact. It's just my opinion, of course.
That would seem to be to be the very definition of politics. Cruz hasn't had a chance to show any ability in foreign affairs, and if you accept the definition of statesman as "one actively engaged in conducting the business of a government or in shaping its policies" then he hasn't shown much of a flair for that either. And why? Because he won't compromise his positions to get along with the rest of the Senate.