MPs play a central role in all democratic systems, but this is particularly true in the UK given its tradition of ‘parliamentary sovereignty’. With judges unable to strike down Acts of Parliament for unconstitutionality, MPs have a key role in constitutional protection. Like MPs elsewhere, they also have responsibilities for upholding the constitution and democracy in many other ways, most obviously through holding the government to account, and representing the public, but also, for example, through maintaining standards of political debate. Meg Russell and Lisa James summarise these various important roles.
Members of parliament are central political actors in all democratic systems. Legislatures are highly visible institutions, and MPs have key roles representing citizens, debating key policy matters, scrutinising the executive and approving major changes to the law. The legislature is at the heart of any functioning national democracy.
Hence MPs routinely have important roles within the constitution. But some of their wider roles and responsibilities in upholding and protecting the constitution are less often spoken about. In an age of populism and ‘democratic backsliding’ these deserve reflection. As sadly seen in various countries, MPs are important gatekeepers whose consent can facilitate the dismantling of democratic norms and institutions. But where they stand firm, they can be bulwarks against decline.
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