A more interesting question, What if the Financial crisis that happened in 08 yet the job losses continued until 09. Happened in 07 and 08?
What would Obama's margin be by then when the depth of the recession happened around election year than a year after?
Would 2010 have then been better for Democrats? Under this scenario, the jobs would have started coming back in early 2009 rather than early 2010, meaning that the unemployment rate would have been dropping for over a year and a half by November 2010 and Dems could have pointed to a year and a half of sustained recovery.
However, Republicans and talk would still have been able to. whip up opposition to Dems on other issues like healthcare and government spending. Republicans are just too damn good at the game.