http://fivethirtyeight.com/features/of-course-trump-can-win/?ex_cid=story-twitter"Harry Enten: More undecided voters now gives credence to the idea that this year may be good for third-party candidates (see Johnson, Gary). I made this argument two weeks ago.
Nate Silver: Sure, and one thing the pollsters are going to have to decide soon is whether to include Johnson in their surveys.
Harry: I’m of the belief that pollsters should at least offer Johnson as an option to some respondents. Otherwise pollsters are putting their thumb on the scale, in my opinion. Johnson has more electoral experience than Trump does. Why isn’t he serious?
Nate: I agree. Some pollsters don’t like to include third-party candidates because, for a variety of reasons, polls sometimes overstate their numbers. But it’s not a pollster’s job, in my view, to take that choice away from the voter when they’ll have it on the ballot. They can always ask the question both ways, too — with Johnson and without.
