Emerging and Minor Parties
Aligned to the Pearson Edexcel 9PL0 specification
- Topic
- Political Parties
- Level
- Intermediate
- Reading time
- 14 min
- Published
- 9 September 2026
On this page
- 1.A System Built for Two, and What Is Happening to It
- 2.The Long Rise of the Others
- 3.Reform UK: Origins, Development and Position
- 4.The Green Party of England and Wales: Origins, Development and Position
- 5.How Minor Parties Change What the Big Parties Do
- 6.What Holds Minor Parties Back
- 7.Exam Focus: Common Mistakes
Key takeaways
- In 2024 the two largest parties took about 82% of Commons seats on just 57% of the vote, the lowest combined share the Conservatives and Labour have recorded.
- Reform UK began as the Brexit Party in 2018, won the 2019 European election with 30.5% of the vote, and in 2024 took 14.3% of the vote but only five seats.
- The Green Party of England and Wales began as PEOPLE in 1972, elected its first MP in 2010 and won four seats in 2024 on 6.4% of the vote.
- Minor parties change outcomes without winning: Reform UK came second in 98 seats in 2024 and may have cost the Conservatives up to 80 constituencies by splitting the right-wing vote.
- At the May 2026 devolved elections Reform UK won 34 of 96 Senedd seats and 17 Scottish seats, and the Greens won 15 Scottish seats and 2 in the Senedd.
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Key terms
- Minor party
- A party that contests elections nationally or regionally but has little realistic prospect of forming a government on its own.
- Emerging party
- A party whose support is growing quickly enough to change the calculations of the established parties, whether or not it has yet won many seats.
- Single-issue party
- A party built around one dominant aim, such as leaving the European Union or protecting the environment, rather than a full programme for government.
- Nationalist party
- A party organised around the interests and constitutional future of one nation within the UK, such as the SNP in Scotland or Plaid Cymru in Wales.
- Wasted vote
- A vote that contributes nothing to the outcome under first-past-the-post: either cast for a losing candidate, or surplus to the winner's requirement.
- Vote splitting
- The effect of two parties with similar supporters dividing that support between them, allowing a third party to win the seat on fewer votes than the two would have taken together.
Frequently asked questions
First-past-the-post rewards support that is concentrated in particular seats and wastes support that is spread thinly. In 2024 Reform UK took 14.3% of the vote and won five seats, while the Liberal Democrats took 12.2% and won 72, because their vote was concentrated.
They pull the large parties towards their positions: UKIP's rise preceded David Cameron's 2013 pledge of an EU referendum. They also change outcomes without winning — Reform UK came second in 98 seats in 2024 and, on Pearson's analysis, may have cost the Conservatives up to 80 seats by splitting the right-wing vote.
At the 2024 general election Reform UK proposed freezing non-essential immigration, raising the income tax personal allowance to £20,000, cutting corporation tax to 15%, scrapping net zero, leaving the European Convention on Human Rights and recruiting 40,000 police officers.
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