What makes the challenge even more acute is that his pronouncement will be followed and commented upon in public even before he retakes his seat in the Commons at the end of his speech.
Blogs will comment well in advance of the considered reactions appearing in print in the national press. The national media will however be playing a big part in populating the blogosphere. Joanna Geary at the Times will be coordinating a live Budget blog with analysis as it happens.
To that end this blog is taking live comment from the web – comments on the budget posted across the twitter network will appear as they are posted throughout the day.