Keir Starmer came to power promising to bring stability back to British politics. Less than two years later, he has stepped down as prime minister, setting off a leadership contest within the Labour Party and raising fresh questions about the country's future.

His resignation comes at a challenging time for the UK, with economic pressures mounting, political divisions persisting and public expectations growing.

What led to Starmer's departure? Who is best positioned to succeed him? And what could another change in leadership mean for Britain, both domestically and on the global stage?

On The Big Story, Hongbin Jeong speaks with Luca Farrow, Associate Research Fellow at the S. Rajaratnam School of International Studies, to find out more.