The bill replaces the Disability Living Allowance and tax credits with a disability addition on top of the new universal credit.

BBC: Welfare Reform Bill: Part two

He also argues that pensioners' top-up benefits - the free bus pass, TV licence and winter fuel allowance - should be means-tested for the richest.

BBC: Nick Clegg: It's sausage time

Other parts of the plan include a reduction in tax rates, including cutting the top rate from 39% to 33%, an increase in the child tax allowance, and a restoration of the married couples allowance.

BBC: $1,350bn US tax cut deal