It’s virtually a statistical 3 way tie.
Do you recall that Labour was expected to win in Great Britain?
The “Shy Conservatives” made a hash of the pollsters predictions.
The Globe has a decent article on the declining reliability of polling;
Margin of error
Gauging voter intentions has never been easy, but after several spectacular recent flops, Canada’s pollsters are trying to return the industry to its once credible predictor of public opinion