Stephen Crabb to replace IDS after resignation blow to Government

David Cameron has moved to shore up his Cabinet team after Iain Duncan Smith quit as Work and Pensions Secretary and launched an all-out attack on the "indefensible" Budget.

Stephen Crabb is to take over from Mr Duncan Smith, while Alun Cairns has been promoted to the role of Welsh Secretary.

In a brutal parting shot last night, Mr Duncan Smith complained that cuts to disabled benefits in George Osborne's financial package were politically driven and the Chancellor had undermined the principle of "all in this together".