Wes Streeting, the Health Secretary, is rumored to be preparing a leadership challenge against Labour leader Sir Keir Starmer, allegedly with the backing of Lord Peter Mandelson, who seeks revenge for his own political setbacks. Labour MP John McDonnell made these claims, suggesting that Streeting's actions represent a coup rather than a democratic process. Streeting, who has distanced himself from Mandelson due to past controversies involving the latter, is reportedly ready to resign from his cabinet position to trigger a leadership election. McDonnell criticized Streeting's approach, advocating for a more democratic process rather than a hasty coup. Streeting's team has released private messages exchanged with Mandelson to demonstrate the nature of their relationship, which includes friendly exchanges but also indicates a distancing since Mandelson's controversies. A spokesperson for Lord Mandelson has been contacted for comment.