Democrats Hate the American Legislative System
A reminder: the Democrats are blaming the Republicans for potentially shutting down the government. The donkeys doth protest too much. In fact, the truth is precisely the opposite: the Democrats are the ones threatening to shut down government.
The key to understanding what's actually going on is to understand the fundamental nature of the American bicameral legislature, in that both houses of the legislature must agree to something in order for it to happen. A Yes and a No are not equivalent: No beats Yes. That is the design. That is how it works. So if you want the IRS to give out free puppy food, and I don't, then I win. We both have to agree to it, or it doesn't happen.
But the Democrats are saying that if the Senate wanted the IRS to fund puppy food, and the House said no, then any Senate failure to act on the rest of the government funding is the House's fault. Saying "you knew we would not act on any bill that doesn't include puppy food funding, so it's your fault we didn't vote to fund government" is pure nonsense.
Again, the side saying No is in the superior position, so there's simply no rational way to look at this and say it is the House's or Republicans' fault if government shuts down.
And you might say that we shouldn't get to this point, that there should be negotiations. Yes, which makes it even more clear that the Democrats are to blame, since Harry Reid and Barack Obama promise that they will continue to refuse to negotiate about it.
The House passed a bill to fund government. There is nothing in the American system that says the Senate has any authority or obligation to demand the House include funding for anything that isn't in that bill. They can ask, but the simple answer at the end of the day is that No beats Yes.
Setting aside the particular issue of "ObamaCare," the House very clearly has the high ground here. The Senate under Harry Reid -- and not the House under John Boehner -- is threatening to allow the government to go unfunded, by refusing to allow the House its constitutional duty to refuse to fund what it wishes to not fund.