You have probably heard some of these arguments. Forgive me if you have considered them.

McCain would be thwarting a Dem congress. Hopefully it will have big enough majorities to override the veteos - but that takes time.

Supreme court justices serve for a lifetime. A more conservative court will affect your life for 20 years minimum.

Our active millitary stuck in Iraq with lousy services and showers that are improperly grounded causing deaths from electrocution.

McCain voted to continue torture - even though he spoke firmly against it in a GOP debate.

Our vets whose health care, mental health, education and disability benefits are grossly underfunded.

Check out the stats that are coming out on the suicide rates for the Iraq vets.

All that said, I don't think the DNC can nominate Clinton. The backlash from the AA community will be worse than losing the Southern Democrats.

Although some of us would not be too disappointed to see both parties die off. I'd go Green in a heartbeat if the chances of winning were competitive.

I hope that not only does Obama win, that we all manage to change politics enough that you have another candidate in your lifetime you believe in this much.

McCain hasn't had to go negative on Obama simply because McCain hasn't ran against Obama yet.  He's been able to sit back while Hillary goes nuts trying to salvage her dream.  He employs Karl Rove, for christsake.

Even if a majority Democratic Congress managed to keep a chokehold on McCain's actions for four years, that's frankly not enough.

Our nation is bleeding.  Every section of our government, every tradition we as a people have kept has been under attack for the last eight years.  Our constitution lies ruined on the steps to the West Wing.  Our military, stretched to its breaking point fighting a war without end, well after the point that a popular, rational president would have called for a draft.  Our agencies, from FEMA to product safety to the Pentagon to the Justice Department, have been corrupted by Bush appointees to the point that most career civil servants with "shreds of personal integrity" have resigned rather than perpetrate further injustice.  Whereas once the world loved our people in defiance of whoever happened to be president at the moment (Muslim academics point to our unseating of Nixon as a great victory for justice, for example), we have raised a generation of global youth who know us only for Bush's belligerance and incompetence.  Not all of these things can be fixed by a mere 2 or 4 years of Democratic dominance - some of them will take a generation to fix.

What we face, meanwhile, is the beginning of the greatest challenge that the nation has faced since the cold war began - a constellation of challenges each equal in scope to any problem a modern president has solved.

We need to transition our people to a non-fossil-fuel-based mode of living.  Natural gas supplies are threatening to exhaust themselves in a decade, and we have already reached the plateau of Peak Oil - while prices rise due to the ever-present demand, the decline (caused by geologic, not economic, phenomena) will start to be considerable sometime in the next 8 years, if not 4.

We need to deal with the greatest debt on every scale - national, personal, trade, military, that we have ever had as a country.  We very likely will have to deal with the crushing fall of the US dollar as anchor currency, to the rising dominance of the Euro.  That represents enough positive feedback to our monetary system to trigger real hyperinflation, all by itself.  And it's already beginning.

We need to reform our justice system, our immigration system, our copyright/patent system, and our national security system to be within the bounds of reason, before we become a pariah nation, known for its hostility to freedom.

We need to establish a constitutional right that advancing technology will no longer allow us to simply presume - privacy.  That such a vague notion has never been formalized illustrates the difficulty, but that it has always been expected illustrates the need.

The status quo on these issues is simply not good enough, even if you can pretend that a Republican President with a Democratic congress wouldn't be able to do anything else harmful.  I can't.  And so I will be voting for Hillary if she manages to get the nomination, because she will at the very least not stand in the way of every change that needs(needs) to be made.  Whether she's willing to prostitute herself out to every push-pollster in the world will not change that, even if she doesn't personally push a single campaign promise through.