Small opposition parties in a Westminster system: How did the covid-19 pandemic affect participation, decision making and oversight in the UK House of Commons?

Opposition parties are a key feature of parliamentary democracies, but their participation rights differ markedly. In the UK House of Commons, the institutional operation of the Westminster model facilitates a marked distinction between the rights afforded to the Official Opposition party, compared to smaller opposition parties. During times of crisis these Westminster model dynamics can shift, impacting opposition rights. This article uses a case study of the covid-19 pandemic to assess institutional inequalities across opposition party groups. Drawing on an analysis of over 4000 contributions to parliamentary debates and interviews with MPs, we examine the pandemic’s impact on the roles of opposition parties beyond the Official Opposition. We find that the pandemic initially generated unprecedented cooperation between the government and small opposition parties, but that this was short-lived. Longer term, the pandemic exacerbated existing institutional barriers and the size and geographical concentration of small opposition parties in the devolved nations brought disproportionate participation and oversight barriers. This suggests the need to guarantee formal opposition rights within Westminster systems beyond the Official Opposition party to ensure that all political parties have the capacity to carry out their functions during times of crisis.