Fascinating analysis by Rex Nutting of MarketWatch. This is perhaps the most interesting part.

Before Obama had even lifted a finger [on arriving in office], the CBO was already projecting that the federal deficit would rise to $1.2 trillion in fiscal 2009. The government actually spent less money in 2009 than it was projected to, but the deficit expanded to $1.4 trillion because revenue from taxes fell much further than expected, due to the weak economy and the emergency tax cuts that were part of the stimulus bill.

When Obama took the oath of office, the $789 billion bank bailout had already been approved. Federal spending on unemployment benefits, food stamps and Medicare was already surging to meet the dire unemployment crisis that was well under way. See the CBO’s January 2009 budget outlook.

Obama is not responsible for that increase, though he is responsible (along with the Congress) for about $140 billion in extra spending in the 2009 fiscal year from the stimulus bill, from the expansion of the children’s’ health-care program and from other appropriations bills passed in the spring of 2009.

If we attribute that $140 billion in stimulus to Obama and not to Bush, we find that spending under Obama grew by about $200 billion over four years, amounting to a 1.4% annualized increase.

After adjusting for inflation, spending under Obama is falling at a 1.4% annual pace — the first decline in real spending since the early 1970s, when Richard Nixon was retreating from the quagmire in Vietnam.