Nigel Farage has accused YouGov of being “deceptive” after the polling company consistently showed Reform with less support than other surveys. He has claimed the company broke transparency rules set out by the British Polling Council over how it presents headline figures. As a result, YouGov has agreed to publish more data in future.

The chart below compares Britain’s monthly voting intentions for Reform in a poll of polls derived from 14 different agencies, with voting intentions for the party from YouGov. The comparison runs from the start of 2025 to March 2026. At first glance, it appears that Farage is right – the YouGov data is below the poll of polls data for most of the time.

However, if we calculate the difference between the two series, the poll of polls average for Reform over the last 15 months is about 28% in voting intentions – for YouGov it is about 26%. This 2% difference is well within the margin of error associated with polling; what statisticians describe as “not statistically significant”.

Vote intentions for Reform, poll of polls and YouGov

The margin of error arises because polls try to measure support for the party across Britain from a survey of only 1,500 to 2,000 respondents. A good survey tries to replicate the diversity of the country in voting intentions, but it may differ from the country-wide support for........

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