This spending review is a massive deal. It's a massive deal because of the sums of money and capital the government is about to allocate - 拢600bn over the next three to four years.
But it is also a massive political moment as the Labour government tries to turn the corner on a difficult first year and show voters it can deliver the change it promised.
It is not, say No 10 insiders, another reset, but rather a chance to show 'working people' why they voted Labour. Look at the blitz of announcements over recent days, and this is a government trying to sell the story of renewal.
On Tuesday, the prime minister and his energy secretary, Ed Miliband, announced the biggest nuclear building programme for half a century, with 拢14.2bn being poured into Sizewell C on the Suffolk coastline to create over 10,000 jobs over the next decade and provide energy security.
Last week, the chancellor announced 拢15bn for new rail, tram and bus networks across the West Midlands and the North. She's also expected to green-light a new rail line between Liverpool and Manchester on Wednesday, and invest capital in housebuilding.
In total, there will be 拢113bn of additional capital investment, which the government will frame as the long-promised 'decade of renewal' around the three pillars of security, health and the economy.