Nick Clegg railed against Conservative backbenchers this morning, in a speech which saw him demand that David Cameron stop buckling to their demands and "get back to governing".
Conservative strategists have reportedly begun planning for the premature collapse of the coalition.
You can't please all of the people all of the time. But that's not stopping David Cameron and Nick Clegg from trying in the coalition's penultimate Queen's Speech.
Changes in Downing Street are rebalancing the policy playing field back towards the Tories - but leaving unresolved tensions as 2015 approaches.
The prime minister went out of his way to humiliate Nick Clegg this morning with a robust defence of Britain's nuclear capability which left the Trident review looking redundant even as a face-saving exercise.
Ignore the chest-thumping patriots and the muddle-headed pacifists - there's a middle way on Trident renewal.
The opening three months of 2013 just about sum up the flavour of this coalition: one-third desperate unity, two-thirds mutual loathing.
The Conservative party was being forced to engage in some vigorous soul-searching this morning, as it woke up to one of its most humiliating by-election results in memory.
Nick Clegg is expected to defy a letter from William Hague to Cabinet members asking them to avoid talking about the rights and wrongs of Britain's participation in the US-led March 2003 invasion of Iraq.
David Cameron refused to support Nick Clegg over the Rennard scandal last night, as a second accusation of sexual molestation by a Liberal Democrat emerged.
The Liberal Democrats are "wobbling jellies of indecision", Boris Johnson has said, as coalition infighting in the Eastleigh by-election goes into overdrive.
Labour will attempt to cause trouble for the coalition by forcing a vote on the mansion tax
Nick Clegg mounted a strong attack on his coalition colleagues today, as the Eastleigh by-election campaign began in earnest.
Imagine living with someone you hate for nearly three years and then being put in a boxing ring with them. The coalition government's unity is about to take a battering in Eastleigh.
This week's boundary changes defeat is, surely, the moment the Conservatives learned to hate the Lib Dems.
David Cameron bears ultimate responsibility for the Conservatives' defeat on boundary changes earlier this week, Peter Bone said today.
The Liberal Democrats are extracting a heavy price for the Conservatives' Lords reform snub. They shouldn't feel too excited, though. This is bad news for both parties.
Liberal Democrat government ministers have combined with the opposition to defeat the Conservatives' favoured boundary changes, in what is being viewed as a massive blow to coalition unity.
The full effect of the promise of a referendum on the coalition was starting to become clear today, after George Osborne issued an outspoken attack on Nick Clegg and the Liberal Democrats.
David Cameron's promise of an in-or-out referendum on Britain's EU membership has been dismissed as "ludicrous" by the Liberal Democrats.
David Cameron and Nick Clegg have formally agreed to go to war in the Commons over boundary changes while keeping the rest of the coalition intact.
Tory and Lib Dem ministers split for the first time ever in the Lords last night, as the row over boundary changes stepped up another notch.
Nick Clegg has accused David Cameron of allowing greater uncertainty to hit the British economy by cultivating hopes of a referendum on the EU.
'Omnishambles' is sooo last year, so this week we're offering your choice of words. Omnimess, omnimuddle, omnifiasco all seem to fit the bill for 2013.
All the juiciest bits from the coalition's audit of its own broken promises - updated live as we find them