Change Research Poll: Warren: 29% Sanders: 22% Biden: 19% Others: who care %

[The Mikado]

https://medium.com/change-research/change-research-accuracy-c4ce51a190cb

When comparing our absolute error on the top-two margin among all our polls with available public comparisons, we are similar in terms of accuracy: slightly less accurate on Senate and Governor polls, and slightly more accurate on U.S. House polls. Of course, our average price per poll is only $4,000–5,000 — usually 80–90% less than what a candidate would pay for a traditional poll.

You get what you pay for.