Kirsty and Frankie discuss how to handle shock resignations from your party, as Jacinda Ardern announces she's standing down as Prime Minister of New Zealand. Kirsty tells us about being on resignation watch when she was "Head of the Weekend" - which is dreamy. Frankie describes the morning of defections from the Labour Party to a new political party. We also dive into why Jacinda Ardern has stood down and whether politics has structural issues which means that women are held back from achieving what they want to. Kirsty tells us she wouldn't have been able to work in Number 10 without her mum helping with childcare. We list off the factions that are known about within the Conservative Party and assess how problematic they are for Rishi Sunak. Frankie has an interesting analysis of factions in the Labour party. Plus, personal reflections on the announcement that teachers in England and Wales will follow Scotland's lead and go on strike. Email with your questions or thoughts: hello@whitehallsources.com.