Gallup came up with +3 GOP in its latest national sample.
That's the number of Democrats who had voted in the 2008 presidential election who didn't bother to vote in the 2010 congressional election.
The closest number to it accounts for the number of Republicans who voted in the 2004 presidential election who didn't bother to vote in the 2006 congressional election. That was 26,365,802 voters.
Those particular numbers are huge drops that become portents overhanging the very next Presidential race. That's because they are EXCEPTIONS to the rule that about 25% dropoffs are normal. These things were 40% or higher!
It is highly unlikely a Democrat can win the Presidential race in 2012.
When your peeps are POd you turn into toast.