Pollsters having to adjust to longer federal election campaign

[rwana]

http://i.cbc.ca/1.2582397.1435078828!/fileImage/httpImage/image.jpg_gen/derivatives/16x9_460/telephone.jpg Poll analyst Eric Grenier looks at the challenges a hotly-contested, 78-day campaign poses to pollsters.


more .... (http://www.cbc.ca/news/politics/canada-election-2015-grenier-pollsters-aug9-1.3181835?cmp=rss)