If you can’t view the most recent polls, tap here for the complete version of this story.
The tracker, which charts shifting vote intentions from January 2020 to the present, allows you to watch the evolving picture as we approach the next general election.
Learn more about the technique and data interpretation in the sections below.
The main line running from left to right depicts the average support that each party received on a specific date. The average is the simple mean of each.
