For most of the last hundred years, the White House has swung on an eight year pendulum between the two major parties. Only rarely, has either party managed to hold on to the presidency for more than two consecutive terms.
After eight years of a Republican president who was reviled by the left, and barely tolerated by the right, it was almost a foregone conclusion that the Dems would take the White House back in '08.
Do recall that our side didn't have a VP who was widely perceived to be the natural successor to the sitting president, nor did the Republicans run a dynamic, attractive nominee in 2008.
The Dems had the weight of the 'pendulum' on their side, and they put up a (seemingly) dynamic, attractive nominee, to boot. We never stood a chance, under those circumstances.
Good analysis.
And upon grabbing the WH, the Dems used massive deficit spending to reward their constituencies (both crony capitalists and entitlement army) insuring re-election in 2012.
I chalk it up to low-information voters and fraud. Nothing will ever change my mind about that.