Conservative support collapsed after Partygate and the cost of living crisis, leading to major by-election defeats. Labour has since regained many 2019 ‘red wall’ seats.
Labour faced a problem in 2019 of not being associated with protecting the interests of the blue-collar working classes, especially in the context of Brexit and globalisation
Education has become a key dividing line, with those with fewer formal qualifications more likely to support the Conservatives and those with a university education more likely to vote Labour and Lib Dem
In 2019, 43% of those with a degree or higher voted Labour, 17% voted Lib Dem, and 29% voted Conservative, while 58% of those whose highest level of education was GCSE or lower voted Conservative
Gender is a less important factor, though there are differences among the young, with the Conservatives winning 15% of young women but 28% of young men in 2017
In 2019, 74% of Leave voters in the EU referendum voted for the Conservatives, including many in the "red wall" who had never voted Conservative before
The perceived competence of the current government and other parties also plays a key role, as seen in 2019 with Jeremy Corbyn's Labour party being seen as incompetent
Unexpected events and issues, such as the COVID-19 pandemic, can also significantly impact the popularity of the government and their electoral prospects
Manifesto promises are scrutinised and defended heavily in the media, but two-thirds of people don't readmanifestos and many voters have made up theirmind before they are published
In the 1979 election, the conservatives made gains among the working classes for the first time, showing a slight breakdown in class as a determinant of voting behaviour
Key factors in Labour's 1997 victory included their ability to win middle-class voters, rational choice and issue voting as they moved to the centre, and perceived competence and leadership of Blair compared to Major
There was a shift back to the two main parties in 2017, unlike in 2010 and 2015 when support for smaller parties like the SNP, UKIP, and Lib Dems was stronger.
May was perceived as being a weak leader whilst Corbyn was able to take advantage of this through being very popular among certain sections of population especially the young
May was criticised for refusing to take part in the leaders’ debate in 2017, which made her appear weak. Her ‘strong and stable leadership’ message also gained little traction.
Corbyn and labor gained significant support due to their policies to end austerity, improve welfare and scrap University tuition fees after seven years of Tory government
The 2017 election campaign was significant as the Conservatives began with a strong lead in the polls, but Labour gained ground despite negative media coverage of Corbyn.
A key point in the 2017 election campaign is when Theresa May proposed social care reforms dubbed the ‘dementia tax’. It faced backlash, and the Conservatives dropped the proposal within 24 hours. The U-turn damaged her credibility and contributed to losing their majority.