Wes Streeting has called for a “wealth tax that works” as the former health secretary sets out his stall ahead of an expected Labour leadership contest.

The former health secretary Wes Streeting claimed the current system is not fair, penalises work, and demanded a radical transformation of the tax system.

The former health secretary’s latest intervention will be seen as a bid to win over the left wing of the Labour Party and see off the threat from Andy Burnham