2016 Postmortem
In reply to the discussion: CNN-0RC Poll Clinton 54%-Bush 41%/Clinton 56%-Rubio 39%/Clinton 57%-Walker -38% [View all]I suspect that comment was directed towards polls that appear to be outliers. As with all polls, you asses their reliability in the aggregate of data, and by the past performance of the pollster.
According to Fivethirtyeight, CNN-ORC polls are rated at A-, making them one of the better pollsters. You can check out their ratings here:
http://fivethirtyeight.com/interactives/pollster-ratings/
The campaign manager's comment is correct however. If you check out that page, there are a lot of really crappy pollsters there.
Unless you have some reason to indicate this isn't a reliable poll, I would say it should be considered reliable based on the aggregate of data and the pollsters past performance.
Sorry if that conflicts with your snarky narrative.