In a new poll conducted by Public Opinion Strategies October 21-23, Obama now leads McCain 52-40.
This compares with a 3% McCain lead when they last conducted a survey in August.
The paper's write-up states that the pollster is actually a "Republican polling firm", so if anything you would expect their numbers to skew towards McCain.
The internals suggest that Obama is killing McCain among independents - now leading by a massive 58-27, against just 36-34 in August.
With numbers like that you can start to see why McCain has virtually given up on Colorado.
So, looks like it's all coming down to PA - and yesterday's news didn't do McCain any favours there, either.