Yesterday the Gallup polling organization came out with numbers which show that, unlike 2008, this year there are more Republicans than Democrats. See their website for details.
To be more specific, Gallup says this year 36% of likely voters self-identify as Republicans, while 35% identify as Democrats. When independents were asked toward which party they "leaned," and these were added to the numbers who chose a party, Republicans had 49% and Democrats had 46%.
By comparison, in 2008 Democrats had 39% and Republicans had 29%, add in the leaners and it was Democrats 54% and Republicans 42%. If Gallup is accurate, 2012 is a much more Republican year.
This news can't be bad for our side, up and down the ticket.