Andy Burnham won a by-election to return to the UK parliament, positioning him to challenge Prime Minister Keir Starmer for Labour leadership.
The by-election was specifically triggered to allow Burnham, the popular Manchester mayor, to re-enter parliament and potentially run for prime minister.
Burnham defeated a challenge from right-wing opponents in a constituency where Labour has suffered losses amid Starmer's declining popularity nationally.
AI-generated summary was reviewed by a CNN editor.
UK politician Andy Burnham could now challenge British Prime Minister Keir Starmer for the leadership of the governing Labour Party, and the country, having resoundingly won the election as the Member of Parliament for Makerfield.
