My sources say it’s either Sessions or Cruz.
Sessions, maybe a thought of Walker.
Cruz is a cheap labor express jackal, and would cause questions about TRUMP’s sincerity on immigration in general and the WALL in particular.
Cruz would have blown up both considerations, not ever in words, (words were cheap) but in practice. He was big on words. But a coward when push came to shove on TPP, Corker, pathways, H1B1 foreign visas. Heck he played sign the check with all of those North American Union CoC boys.