Don't let the score trick you into thinking it was a close game
That's way too simplistic, especially from "Washington" reporters.
What really happens is that they corral enough votes by a safe margin, let's guess 240, and then begin to "release" specific Congressmen facing tough reelection in Republican districts to allow them to vote no.
The minute they confirmed the vote would be Sunday night, they already had the votes by a safe margin. Everything after that was Kabuki for the optics.
Later: Second stupid analysis: The passage was good for Obama but bad for Dems.
If Obama looks good, Democrats look good. It's that simple.