Though, the GOP curently has like a 1% advantage in voter Registration and the "active" label can probably be attributed to the Caucuses, right?
What were the 2010 exit polls like for Colorado? Would there be any reason why Democrats would do worse in Colorado than they did in 2010?
The problem with the whole "Colorado Democrats win in 2010" narrative is that it's false. Republicans took every single statewide office with the exception of the Senate and gubernatorial races, where the Senate Democratic candidate got maybe 48% and the supposedly "popular" Denver Democratic mayor running for governor got 51%. Not remarkable. But it's even less remarkable when you consider the fact that there was essentially no credible Republican candidate, other than a really unpopular one who ran on the Constitution Party ticket. And the "popular" Denver mayor only got 51%.
The GOP took two Congressional seats to pick up a majority for the delegation. The GOP picked up the state House and one seat in the state Senate. It was actually a very good year for Republicans in Colorado, but they totally blew easily winnable Senate and gubernatorial races (that may have had major downticket implications that keps other GOP candidates from winning their races).
If Marco Rubio (or even Jane Norton) would have been running for Senate, or certainly if a strong GOP gubernatorial candidate had emerged, the GOP would have swept Colorado quite easily in 2010.
It didn't happen, but there's a real chance that it will in 2012. So much of the Democrats' success in the state is a result of GOP incompetence, and has very little to do with any supposed "ideological shift" among voters in Colorado.
Obama has a chance to win Colorado. But it's a R-leaning state, perhaps like Virginia, that will be an enormous challenge for Obama. I think that it certainly favors Romney. But I still think that Obama can easily win Ohio and Virginia, and thus the whole election. I'm not predicting the Romney landslide tha some conservatives think will happen. I just happen to think that landslide or loss, Colorado goes red again.