Report: Mainstream Media Undermined Jeremy Corbyn

The former Labour Leader was never given fair coverage despite his policies being popular by the British public.

Leader of the Labour Party speaks to a huge crowd leading up to the General Election where Labour won the largest vote share since 1997. (The Independent, 2017)

2017 Election

Three weeks before the Election Labour leader Jeremy Corbyn had 56% negative coverage versus 62% positive coverage for Conservative Prime Minister Theresa May.
While the Labour Party was within four points of the Conservatives, Corbyn received 64% negative coverage.
One week before the Election and Corbyn still received more negative than positive coverage relative to May.

2019 Election

Three weeks before the vote Corbyn is approaching 70% negative coverage compared to Johnson who’s coverage is slightly positive @ACBC89
In the final week three-quarters of the coverage of Jeremy Corbyn was negative versus slightly positive coverage for Boris Johnson @ACBC89
Five of the eight sources analyzed covered the Opposition leader very negatively before the 2019 election.
Boris Johnson received largely average to slightly above average positive coverage.

Weighted by Monthly Reach

This study focused on the headlines of four conservative, two center-left, and two centrist mainstream news sites that had wide monthly reach in the UK of 258 million. I left out the Daily Express which received a lot of controversy for their coverage in both elections, consequently this means the study is tilted in favor of the Labour party by as much as 2–4%.

Positive and Negative mentions weighted by Monthly Reach of 258 million


This study focused largely on the headlines leading up to the General Election for June 2017 and December 2019. There is a strong correlation between the tone of an article in the headline relative to the tone of an article itself. Because there were more articles written in the 2019 election than the 2017 election, this focuses a little more on the former than the latter. The total number of articles analyzed for the 2017 election was 476, for the 2019 election it was 564.

Loughborough University studied first three weeks of 2019 election and weighed positive and negative mentions relative to circulation.

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