Democratic gubernatorial candidate Matt Flynn says there’s a high financial and personal cost to enforcing drug laws — and that’s why he wants a statewide referendum on legalizing marijuana. Flynn is part of a crowded field of Democrats running against each other next August for the right to go up against Republican Scott Walker next November. The Milwaukee attorney and former state Democratic Party chairman says he’s asking lawmakers to call an advisory referendum for next November — the same day of the governor’s general election. G-O-P legislative leaders have previously said they’re not interested in making marijuana legal. Walker opposes it for both recreational and medicinal purposes.