The Prime Minister's persistent refusal to debate Salmond will become a running sore and an increasingly dominant aspect of the campaign.
The PM's warning that means-testing pensioner benefits would raise only "a very small amount of money" was the most notable moment in a sombre session.
The PM's loose talk on tax has distracted from his popular pledge to maintain the triple lock on the state pension.
The Prime Minister needs to reverse the foolish decisions his government has taken on flood defences.
Both men are failing to articulate a vision that says more about what kind of country Britain should become than about what it has been.
The right have twisted the Business Secretary's words far beyond their original meaning in an attempt to force his departure from government.
So long as Miliband retains the support of around 20% of 2010 Lib Dem voters, the Tories have no hope of victory.
By banning migrants from claiming benefits for three months, the PM simply reinforces the myth that immigration is an ill.
Miliband is running out of time to inspire people with more than just a feeling that he has noticed how expensive life has become.
Rather than following Osborne and denying that living standards are falling, Cameron sought to hold the last Labour government responsible.