As had been widely anticipated [2], News International today named Dominic Mohan [3] as the new editor of the Sun. Mohan, currently the paper's deputy editor, will replace Rebekah Brooks (formerly Wade), who will shortly take up her new position as chief executive of News International.

One of the central challenges for Mohan will be to establish the paper's political line ahead of the general election. As I've previously noted [4], the Sun is now almost certain to defect to the Conservatives at the next election. The paper's support for the Tories in the European election and their endorsement of Boris Johnson last year suggests we won't be seeing red smoke emerge [5] from the Sun's Wapping HQ again.

Mohan is not known as a political animal but if Rupert Murdoch (and it will be him) gives the nod to David Cameron, it may be up to Mohan to determine whether the Sun attacks Cameron from the right (on immigration, tax and crime) or evolves into a more liberal creature.

On the business level, now Murdoch has declared that he intends to charge for all his news websites by next summer, Mohan will be responsible for providing the celebrity scoops that the News Corp head believes users will pay for.

Murdoch's UK newspaper empire is more dependent than ever on the Sun for profits, with both the Times and the Sunday Times losing millions in advertising revenue.

The Sun's circulation decline (down 0.4 per cent year-on-year) has been mild compared to some, but this has been achieved in part through an aggressive price war (in many areas the paper retails at just 20p) that may prove unsustainable.

Mohan can take comfort in the support of a proprietor who is committed to rescuing the printed press for the 21st century and who is redirecting resources to his core assets.

The imminent closure of the London Paper and the sale of the neoconservative magazine the Weekly Standard [6] demonstrate that Murdoch is prepared to act ruthlessly to protect his most renowned titles. It will now be up to Mohan to prove that such faith has been well placed.