Sir Keir Stamer has insisted the "vast majority" of Labour MPs supported him and wanted him to continue doing his job as prime minister. He was speaking to the Sunday Times at the end of a week in which speculation about a potential leadership challenge has risen. Sir Keir told the paper "in politics, you get this sort of thing all of the time, there is always talk". Shadow home secretary Chris Philp said the prime minister should resign over his decision to appoint Lord Mandelson as the UK's ambassador to the US, adding that Labour MPs should "develop a...