The United Kingdom is undergoing a quiet constitutional breakdown. Not in the dramatic sense of institutional collapse, but in a slower and more corrosive way: voters increasingly feel unrepresented, power remains concentrated in Westminster to a degree unusual among modern democracies, and the link between democratic choice and real-world decision-making has weakened.

These are not separate problems. They form a single constitutional question: how can a modern, diverse, multi-national state remain democratic, fair, and stable when many of its institutions were designed for a different era?

The answer lies in three connected pillars: fair representation, decentralised power, and fiscal accountability. Each alone is insufficient. Together, they form a democratic redesign of the United Kingdom. The first pillar is electoral reform.

A functioning democracy depends on a simple principle: votes should translate into representation. In the United Kingdom, that principle is routinely broken by First Past the Post.

The 2024 General Election once again demonstrated the scale of the distortion. Parties receiving millions of votes secured only minimal representation, while others translated relatively modest vote shares into overwhelming parliamentary majorities. This is not merely a technical flaw. It is a structural weakness that undermines confidence in democratic legitimacy.

The solution is the Single Transferable Vote (STV), a proportional electoral system that preserves local accountability while ensuring representation more closely reflects voter preference.

Under STV, voters rank candidates in order of preference within multi-member constituencies. Several MPs are elected in each area rather than a single winner taking all. Representation is therefore earned through votes, not shaped by electoral geography.

The benefits extend across the political spectrum.

For Labour supporters, STV ensures electoral victories and defeats are determined by genuine support rather than the efficient distribution of votes. For Conservatives, it reduces the dramatic seat swings that can occur when small national shifts produce huge parliamentary changes, encouraging stability and broader coalition-building. For Green voters, it ends decades of under-representation relative to vote share. For Reform UK supporters, regardless of political agreement, it ensures substantial public support translates into a meaningful parliamentary presence.

Perhaps most importantly, STV reduces the incentive for tactical voting. Citizens can support their preferred candidate without fearing they are helping elect their least preferred option. The system adapts to voters, rather than requiring voters to adapt to the system.

Electoral reform also changes political behaviour. Parties must appeal beyond narrow geographic strongholds and seek support from a broader range of voters. Candidates must engage with more diverse electorates. Politics becomes less about concentrating support in the right places and more about winning support across society.

The result is a Parliament that better reflects Britain as it actually is: politically plural, regionally varied, and increasingly diverse in opinion.

Yet fair votes alone cannot solve the wider constitutional problem. Even a perfectly proportional Parliament would still govern through one of the most centralised states in the democratic world. Fair representation is therefore the first pillar of reform, not the final destination.

The wider goal is a United Kingdom where votes count, where power is exercised closer to the people affected by decisions, and where funding follows democratic responsibility. Electoral reform provides the democratic legitimacy upon which the other two pillars—federalism and fiscal federalism—must rest.

A modern democracy should not require voters to navigate distortions and tactical calculations simply to be heard. It should ensure that votes translate into representation and that representation translates into meaningful influence.

If trust in politics is to be restored, every vote must count. That is the foundation of a more representative, responsive, and genuinely democratic Britain.

* Iain Donaldson is the treasurer of the Rochdale Liberal Democrats.