Green party leader shares statement after open letter from Met police chief Mark Rowley

• Zack Polanski apologises for sharing tweet criticising police at Golders Green stabbings

As the May elections creep closer, the leadership speculation at Westminster grows more intense. Is Keir Starmer safe and, if so, for how long?

In her analysis piece below, the Guardian’s political editor Pippa Crerar explores the state of prime minister’s leadership, why discontent is building within Labour and who the most likely challengers could be.