The legacy of nineteenth-century constitutionalism hampers the effective realization of democracy in the UK. Bagehot’s eulogizing of the fusion of the executive and legislature now appears to grant far too much power to the government, given the context of parliamentary sovereignty and a ‘first past the post’ electoral system. But democracy is a far richer notion than one which requires merely that power should be exercised by a majority of elected representatives. Democracy also requires that individuals and minorities have certain fundamental protections from majoritarian interests. Democracy in Britain has also been weakened by vagueness as to the role of direct democracy (and how it relates to popular sovereignty) and referendums in the UK. The UK Cabinet Manual (which, absent a codified Constitution, is the closest Britain comes to codifying its constitutional principles) does not specify the role of referendums in British governance, nor suggest that a referendum vote might override other constitutional principles. However, the Brexit referendum, although advisory in status, was nonetheless perceived as binding and implemented. If referendums are to become a more frequent feature of British constitutional practice, there is an urgent need for clear principles regarding their use to be articulated.

This chapter provides a detailed account of the powers of the UK Government, both in relation to executive powers and the initiation and control over the enactment of primary legislation. In particular, it provides an up to date account of the impact of the two recent Miller decisions (the Brexit decision and the prorogation decision) , explaining their impact on the control over prerogative powers. It also explains the impact of the Fixed-Term Parliaments Act 2011 on prerogative powers.