"It is now time to step aside and focus on other issues: international affairs including defense, security, trade, and technology in a fast-changing world," Starmer said.

Keir Starmer is to step down as a Labour MP after resigning as Prime Minister earlier this summer to focus on international affairs and tackling violence against women and girls

Former PM says it is right time to go, which will trigger byelection that Greens’ Zack Polanski could target

Greens will target former prime minister’s seat in central London byelection