Back in 2024, the UK's Labour party won a landslide victory, the first win in 14 years. The man who led the party to that triumph? Keir Starmer. But just two years later, Starmer found himself under such intense pressure that on Monday, he announced his resignation .

Outside his official residence in Downing Street 10 in London, he said a successor was to be chosen by the end of Parliament's summer recess in September.

The man widely expected to be that successor is Andy Burnham. Last week, the popular Manchester mayor won the by-election in the constituency of Makerfield by a wide margin, securing a seat in Parliament. Holding a parliamentary seat is a prerequisite for becoming prime minister.

UK Prime Minister Keir Starmer quitsTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video

A long political career