Liberal leader Justin Trudeau is right to say no to any coalition talks with the NDP. It's a con game by the NDP and one that would make voters punish the Liberals. For one thing, the Liberals and the NDP are very different on issues like the Sherbrooke Declaration and the Senate. Then there's the question who'll lead and for how long. A coalition also begs the question why should you vote if the second and third status parties are going to knock out the sitting government.