Wes Streeting prepares to launch leadership challenge against Keir Starmer

Health secretary’s move to force race sparks scramble on left of Labour for candidate to oppose him

• UK politics live – latest updates

Wes Streeting is preparing to launch a leadership challenge against Keir Starmer on Thursday if the health secretary can secure the support of enough MPs to trigger a contest.

Streeting’s move to force a race has sparked a frantic scramble on the left of Labour to find a candidate to oppose him, with Ed Miliband and Angela Rayner both possible contenders.