The party's new attack video shows how it will maximise the damage for the PM by reminding voters how he promised in 2010 to protect the health service.
MPs who last year wanted the Labour leader to trump Cameron by calling for a snap poll on Europe say the moment has passed.
The Tories go to war with the Speaker after he rebukes Cameron for ignoring a question in favour of an attack on the unions.
In May 2010, Cameron declared that the living wage was "an idea whose time has come". But the PM has said nothing substantive on the subject since.
History shows that after seven years at the top, politicians' ratings go into decline - and Cameron can't afford to lose votes in 2015.
When Cameron derides Miliband for not wanting to talking about the economy, he forgets that, for most voters, living standards are the economy.
The PM raised his game but he is still struggling to change the subject.
Cameron's hope is that warnings of a "cost of living crisis" will fade as higher growth translates into higher wages. But Labour remains sceptical.
If this is a recovery, the voters will ask, why aren't we feeling it? Cameron and Osborne need to offer answers.