The government is facing a crisis in its efforts to prevent European foreign nationals from coming to the UK to claim benefits, Iain Duncan Smith has said.
Ed Miliband is to set himself apart from old and New Labour when he declares that both strands in his party's postwar history have lost relevance in 21st-century Britain.
Labour will move to protect itself from the politically damaging charge that it is soft on welfare claimants, by proposing that every adult aged over 25 and out of work for more than two years should be obliged to take up a government-provided job for six months, or lose benefits.
Margaret Thatcher and her chancellor Sir Geoffrey Howe were behind a politically toxic plan in 1982 to dismantle the welfare state, newly released Downing Street documents show. She later attempted to distance herself from the plans after what was described as a "riot" in her cabinet.
Nick Clegg has used the fifth anniversary of his election as Liberal Democrat leader to claim his party has been on a journey to the centre ground, and used the example of the party's commitment to balanced welfare changes to show how it has matured in office.
Nick Clegg is to adopt a high-risk strategy of highlighting Liberal Democrat policy differences with their Conservative partners before government announcements have been made, according to the deputy prime minister's former adviser .
Labour has gone further than before to suggest it will vote against the government's three-year benefits squeeze as it went on the offensive and claimed the measures would jeopardise dozens of Tory MPs in marginal seats.
Ed Miliband is to put Labour at the head of a national revolt to kill off the chancellor's latest benefit cuts as church leaders and leading charities unite in protest against the assault on welfare.
Vince Cable, the business secretary, has put himself at the helm of a Liberal Democrat backlash over the autumn statement, accusing David Cameron of being frightened off a mansion tax by Tory donors and criticising George Osborne for stigmatising welfare claimants.
Benefits will rise by only 1% a year for the next three years in a crackdown on those George Osborne claimed were "living a life" on public assistance.