Tory MPs hit back after threats issued to those opposing 45p tax rate abolition

Party chair's very provocative and very silly' warning risks breaking the dam', say backbenchers

Conservative MPs are warning of a backlash after threats they could lose the whip if they vote against the abolition of the 45p tax rate, with at least 14 MPs publicly expressing concern about the plans to cut taxes and slash spending.

Jake Berry, the Conservative party chair, sparked anger among colleagues on Sunday when he said MPs would be expected to back the tax measures or would no longer be allowed to sit as Conservatives.