We've reached the point in the election where the press decides to mostly report on how the election is being perceived rather than on any particular events, and since the president is doing well in the polls this results in a lot of "desperate Republicans do foolish things" stories. The flavor of the week seems to be the media's discovery that somewhere out there in the right-leaning internet, there are people who have made a hobby of "re-weighting" polls in order to reflect what the re-weighters think is a more likely partisan composition of the electorate come election day.
There is, yes, a certain sad desperation about this. Now that election reporting is often more about "the race" than about issues or events, being behind in the race is crippling and so people come up with way to try to explain it away. Those with long memories (eight years counts as long in our modern age) may recall that when Bush was so rude as to be ahead of Kerry in the 2004 race, Michael Moore and those like-minded rolled out a theory that all the polls were wrong because an army of voters who only used cell phones and not land lines (and thus couldn't be polled) were out there ready to vote against Bush.
However, just as everyone's getting ready to announce that Republicans, in their constant flight from the "reality based community" have decided they don't believe in polling, we find out that the left has its own reality problem: They're convinced that the economy has been getting better over the last couple months, despite the fact there's little reason to believe this. Gallup and the Pew Research Center both have data out showing that Democrats' opinions of the economy and the job market have suddenly started improving, despite almost universally bad news over the last several months.
The trope goes that you are entitled to your own opinions, but not your own facts. However, as the political divide has become wider and more entrenched opposite sides increasingly do have their own facts, as reality become filtered through a partisan lens.