The appointment of John Healey is particularly fascinating, writes BBC political editor Chris Mason.

A government ends and a new government begins, determined to make a splash with its early policy announcements. Andy Burnham has started his first full day in the job with a promise to cut VAT from household electricity bills from 1 October. We can expect to see and hear plenty from the new prime minister and his senior ministers in the coming days, making arguments, travelling the country and trying to make an impact. At gone 22:00 BST on Monday night, there was still a minibus full of ministerial wannabes inside Downing Street waiting for their new positions to be confirmed. One of the later posts to be filled was that of defence secretary, a role taken by Wes Streeting, whose resignation as health secretary two months ago contributed to the draining of Sir Keir Starmer's authority as prime minister. The story of the reshuffle can best be summarised as neither of the two ministers most widely talked up as chancellor - Shabana Mahmood and Ed Miliband - getting that job, it instead going to John Healey. And there being a pretty significant cull of the ministers closest to and most loyal to the now former prime minister: think David Lammy, Darren Jones, Peter Kyle, Lord Hermer, Steve Reed and Rachel Reeves – albeit Reeves, I am told, was offered a cabinet post but turned it down. The appointment of Healey as chancellor is fascinating. Healey was a minister in the Treasury for five years between 2002 and 2007, firstly as economic secretary and then as financial secretary.