Over the past couple of years, Big Business (as in, "being in hock with...") has been deployed almost as an insult against the Tories. But they've now used their campaign on national insurance to turn their business associations into an advantage. Exhibit A: the above picture (via PoliticsHome) of Cameron's visit to the Warbutons HQ in Bolton, where the company owner has come out in support of Tory proposals. It sends the message that Big Business doesn't just mean the financial services, and a lot of people, in a lot of regions, rely heavily upon it for their livelihoods. And too right, too. Expect plenty more like this from the Tories over the next few weeks.