The One Nation group will seek to "outride" for the Labour leader's ideas and demonstrate that the party has moved into a post-Blairite/Brownite era.
Miliband's net satisfaction rating rises by 23 points in the latest Ipsos MORI poll but the Tories are now tied with Labour on 35%.
Should Cameron's party oppose the levy, Labour will accuse it of again siding with predatory companies against struggling consumers.
We are about to discover whether Miliband is, as he believes, the first Labour leader of a new era or, as his critics suspect, the last leader of the era now ending.
While restricting current spending, the party should promise to invest the proceeds of growth into future-facing areas like skills, childcare and infrastructure.
Rather than trying to outflank the Tories, the party needs to think harder about how to create a greater sense of collective identity and solidarity.
Rather than dismissing the idea as another burden on business, Conservatives should recognise it as an attempt to strengthen the family.
The left wrongly assumed that the replacement of Liam Byrne and Stephen Twigg would mean a change in policy.
Our pledge to freeze energy prices isn't a "gimmick" to customers being squeezed by corporate profiteers.