http://thinkprogress.org/politics/2016/08/03/3804589/scarborough-donald-trump-nuclear-weapons-msnbc/
"Asked which people in the national security community are advising Trump, Hayden said, “No one.” And in response to a question about what steps might stand in the way of Trump using nukes if he’s elected president, Hayden said, “The system is designed for speed and decisiveness. It’s not designed to debate the decision.” Despite characterizing nukes as “the single biggest problem we face,” Trump has had a hard time articulating a coherent nuclear weapons strategy. He’s suggested he’s not a fan of the nonproliferation strategy the United States has successfully pursued for the last three decades. Asked about the possibility of using nuclear weapons in Europe, Trump said he’s “not going to take it off the table"."