One person encouraging Trump to perhaps choose a general is Sen. Jeff Sessions (R-Ala.), who has become a force inside of the campaign. He shares Trumps view that while unorthodox, a general could excite voters from both parties who want to see wholesale change in domestic politics and an aggressive approach to combating terrorism.
Does Senator Sessions like General Flynn? He is a registered Democrat. He is from Rhode Island.
Giuliani has been spoken out strongly and effectively on issues, shows no fear of criticizing Obama and Hillary. Thus, some have wondered if he is under VP consideration. I myself doubt it (both being from NY) but perhaps for AG or Homeland Security.