Election 2015: Latest poll rating for each of the main parties ahead of General Election

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Want to know the latest polling for each of the main political parties ahead of this year's General Election?

This tool shows the 'poll of polls' ratings ahead of the General Election on May 7.

The tool draws on every opinion poll published by each of the main polling companies over the last 100 days.

It uses a rolling average of all polls, rating each party on its average poll performance over the previous five days.

That gives a more balanced overview and helps iron out the statistical limitations of any individual poll.

We are checking the output of all polling companies and mainstream media every day, as well as monitoring aggregating sites ukpollingreport to make sure we don't miss a single survey.

Poll of polls