Graphs below. Click on the links to show trend-lines for different parties.
Infrequently asked questions
What are these trend lines? They’re estimates from a model which treats latent party support as something which evolves smoothly over time, and is made manifest through particular potentially biased polling snapshots.
Why are some trend lines way above the polls? Evidence from the last elections showed polling companies consistently under/over-estimated some parties. These biases are included in the model.