Why tonight's YouGov election poll reveal could be so significant

27 November 2019, 15:13 | Updated: 27 November 2019, 15:22

Last time the YouGov election poll predicted the exact outcome while all other polls did not - and this year's poll is out tonight. Matthew Thompson explains all.

In 2017, this particular poll not only predicted a hung parliament but almost predicted the exact numbers.

Watch as Matthew Thompson explains above how the poll works