Sir Keir Starmer’s allies have accused Wes Streeting of plotting a leadership challenge and his recent public statements give credence to the notion that he has been on manoeuvres, writes Daniel Martin. The Health Secretary has made a habit of straying beyond his brief, commenting on issues that have little to do with his role in charge of the NHS. Mr Streeting is widely known to be one of Labour’s more centrist politicians, supporting the Blairite wing of the Labour Party. But many of his public comments on issues such as the Gaza conflict appear designed to appeal to the...