Keir Starmer has stepped down as the UK's prime minister after months of pressure. Bloomberg News Editor-in-Chief John Micklethwait discusses what key issues undermined the outgoing premier's time at Number 10. -------- More on Bloomberg Television and Markets Like this video? Subscribe and turn on notifications so you don't miss any videos from Bloomberg Markets & Finance: https://tinyurl.com/ysu5b8a9 Visit http://www.bloomberg.com for business news & analysis, up-to-the-minute market data,