JEREMY CORBYN vowed yesterday that a Labour government would exercise Britain’s veto over the secretive TTIP trade deal — and challenged David Cameron to do the same.

In a major speech on the EU referendum, the Labour leader argued that the future of workers’ rights enshrined in European law were at stake on June 23.

But Mr Corbyn was also highly critical of EU pro-privatisation policies, the treatment of Greece and the trade deal being negotiated with the US behind closed doors.