LONDON — Britain’s new Prime Minister, Andy Burnham, tried to hit the ground running Tuesday after assembling his top team and unveiling a plan to cut energy bills.

The former mayor of Greater Manchester became Britain’s leader on Monday, replacing Keir Starmer and inheriting the Labour Party’s House of Commons majority. Burnham has already overseen a clear-out of key Starmer allies, and picked former Defense Secretary John Healey as his top finance minister.

Burnham is Britain’s sixth prime minister in the past decade alone, and his appointment comes as the governing Labour Party gambles that another change at the top will turn around a polling deficit to right-wing populist Nigel Farage.Here’s how the day unfolded in POLITICO’s live coverage.