So you're saying the polls showing Hillary with a 12 point lead are good for Trump and bad for Hillary. Looks like the polls are rigged in Trump's favor.
Depends on how an individual voter views it. Close polls I think would get the vote out on both sides. A slight lead just outside the MOE I think would encourage voters for the (poll) losing candidate to get out and vote. A 12 point lead by Clinton I would think would discourage Trump supporters from making the effort to vote (but I don't think many Trump supporters really believe ABC's BS).