How did the UK's decision to leave the European Union in 2016 impact its political landscape?

The United Kingdom's decision to leave the European Union in 2016, commonly referred to as Brexit, had a significant impact on the country's political landscape.

Firstly, it led to a change in leadership, as then-Prime Minister David Cameron resigned shortly after the referendum results were announced, and Theresa May took over.

Secondly, it sparked a renewed debate on Scottish independence, as Scotland voted overwhelmingly to remain in the EU. The Scottish National Party called for a second independence referendum, arguing that the UK's decision to leave the EU constituted a material change in circumstances from the 2014 referendum.

Thirdly, the referendum exposed deep divisions within the country, not only between the different nations of the UK, but also between different regions and socioeconomic groups. This has led to a rise in populist and nationalist sentiment, as well as an increased polarization of political discourse.

Lastly, Brexit has dominated the political agenda ever since, as negotiations with the EU have been ongoing and the UK has had to negotiate new trade deals with other countries. It has also brought up issues surrounding the Northern Ireland Protocol, which has been a contentious issue for the UK and EU.