How far can the Green Party go without Caroline Lucas?

<div>The Green Party's first and only MP, Caroline Lucas, has announced today that she'll be stepping down at the next election. On the episode, Katy Balls talks with Isabel Hardman and Fraser Nelson about Lucas's achievements and what it's like to be the sole MP of your party in a parliamentary system like ours.<br> <br> Produced by Cindy Yu.</div>