"Hey Bob, here's the new bill. Pages 250-278 were changed to make compromises for the senate version. Take a look at those, the rest wasn't touched." This could very well be (and I would think MOST likely) the way of it, but people immediately jump to the conclusion that Democrats are up to no good.
As soon as the spending starts to happen at home we see people throw a fit. Spend the money on foreign governments, military spending, and wars and people seem to feel better about spending borrowed money. Go figure.