'I worry about mental health' - Simon Bridges on cannabis vote

National is accusing the government of pushing a cannabis referendum that's full of holes. A cabinet paper leaked to the party shows 4 options for a referendum but only one is binding. The Justice Minister Andrew Little says the cannabis referendum will be binding as promised but says he'll explain "exactly what that means" when the next details are announced. That could be as soon as today with Ministers expected to discuss the referendum in Cabinet on Monday. The leader of the opposition is Simon Bridges. He talks to Corin Dann.