Jacinda Ardern proved a true leader knows when to step back. If only US politicians could do the same | Arwa Mahdawi

There’s a real problem when the same people cling to power for decades and refuse to make room for new bloodIt was inevitable that someone was going to ask that most cliched of questions and, voilà, they did. Shortly after Jacinda Ardern’s shock resignation as New Zealand prime minister this week, the BBC tweeted out a story about Ardern balancing motherhood with politics, with a headline asking if women can really have it all. After being accused of “staggering sexism”, the BBC deleted the headline and apologised.