Today the Unit published Monitor 82, containing reporting and analysis of recent constitutional events, covering the period from 1 August to the debates on the Counsellors of State Bill earlier this week. Even by the standard of recent years, the last four months has been a period of constitutional turbulence that has seen the ousting of two Prime Ministers and the death of a monarch who had sometimes seemed a constitutional constant. Meg Russell and Alan Renwick argue, in this piece, which is also the lead article for Monitor, that the new Prime Minister and monarch face significant challenges if they wish to rebuild stability and faith in the UK’s institutions.

Recent months have seen unprecedented turbulence in UK politics. This blogpost, like the current issue of Monitor, covers developments over just four months, yet reports on a change of monarch and two changes of Prime Minister, plus remarkable churn in ministerial positions, and much else.

As reported in the previous issue of Monitor, in early July Prime Minister Boris Johnson was forced to announce his departure following a wave of ministerial resignations. Concerns about propriety and integrity were central to his removal. Yet these topics played disappointingly little part in the leadership contest which unfolded over the summer, including in a series of hustings meetings for Conservative Party members between Rishi Sunak and Liz Truss. The primary focus of the contest was understandably the cost of living, with contention between the candidates over their economic approaches – Sunak warned against the dangers of Truss’s proposed unfunded tax cuts.

Truss won the contest, becoming Conservative Party leader on Monday 5 September, and she was appointed Prime Minister the following day by Queen Elizabeth. Cabinet positions began to be filled the day after that. But on 8 September, the day of the new government’s first major statement on the energy crisis, news emerged that the Queen was unwell. Her death was announced that evening. The end of a reign lasting over 70 years was a major moment for the United Kingdom’s national and constitutional self-understanding. The country entered a period of national mourning during which the funeral was held. Prince Charles immediately became King. Within days, he delivered a televised address, gave an oath at the Accession Council, addressed MPs and peers in Westminster Hall, and spoke at the Scottish Parliament, the Senedd, and Hillsborough Castle.

This delayed the new government’s activities, but a shock of a different kind occurred on 23 September, when Chancellor of the Exchequer Kwasi Kwarteng announced his so-called ‘mini budget’ to the House of Commons. Including ambitious tax cuts beyond those that Truss had pledged during the campaign, it resulted in grave instability for the financial markets. Ultimately Truss sacked Kwarteng on 14 October, but was forced to announce her own resignation just six days later. This triggered a further Conservative leadership contest, which saw Sunak appointed to the role of party leader and Prime Minister.