bristol bay in alaska is one of the world s great habitats for salmon. it could be in danger now that the trump administration has cleared the way for the construction of a new gold mine. a meeting on the president s plane, air force one, set everything in motion. cnn s senior investigative correspondent drew griffin has the exclusive details. reporter: the meeting took place on the tarmac during an air force one stopover june alaska governor mike dunleavy, pro mining, pro business, anti-epa governor met with donald trump for nearly half an hour. just got off of air force one meeting with president trump. reporter: he has been pushing for a massive gold and copper mine known as the pebble mine. home to the breeding grounds for one of the world s largest and most pristine sakai salmon