All of us on the centre-left are holding our breath hoping that nothing gets in the way of Obama winning the US Presidential election on Tuesday.
Perhaps it's because I'm Labour, but I believe the only moment of certainty in politics is the night the ballots get counted. The uncertainty starts again the very next morning. I am always astonished when people think something is "in the bag" - that's usually when things start to slip away from them (for the most recent example of this see this poll done by Conservative Home just before their party conference, where an astonishing 91% thought they were either heading for a large victory or a small victory - that was when the Tories were running a good 25 points ahead of Labour and before the meltdown of the markets).
American polls are more inaccurate than British ones - we saw this in the primaries. At least the regular primary ballots provided a reality check. We haven't had one for a while, and it's likely that media hype is disguising an unstated resistance to having Obama in the White House.
I hope I'm wrong, but if I was Obama I would get my people to fight fiercely to the very end to get out the vote. I think the result will be close and that every last vote will count. Obama has very good organisation on the ground, and if he wins it will be down to that rather than any radical shift in the zeitgeist (the shift will come after he wins and starts to govern, and has the power to "change the weather" in fundamental ways).