What happened today in British politics?

The UK Supreme Court has ruled that Prime Minister Boris Johnson's decision to suspend Parliament was unlawful. Mr Johnson suspended - or prorogued - Parliament for five weeks earlier this month, but judges said it was wrong to stop MPs carrying out duties in the run-up to Brexit on 31 October. We discuss why and how it was unlawful, and the potential consequences of the ruling.

(Photo: Protesters outside Supreme Court after hearing the result of a hearing on the prorogation of parliament, in London, Britain, 24 September 2019. Credit: EPA/WILL OLIVER)