Excerpted from Sean Trende's column at Real Clear Politics (RCP) "Are Things Getting Worse for House Democrats?" Aug. 3:

what we are currently looking at is a 10-point generic lead for Republicans among the likely electorate. This would represent historic gains for the GOP. This would be larger than the 52-45% edge that gave the Republicans 230 seats in 1994 or the 52%-44% win that gave Democrats 233 seats in 2006. A ten-point win would be more consistent with the 53%-43% edge Democrats had in 2008, which gave them 257 seats - 80 seats more than Republicans presently occupy.

Recently, though, the President's disapproval numbers have spiked again, and his approvals have fallen. There is now a near-majority of voters disapproving of him, the highest number in the history of the RCP Average. This also means that there are probably around 100 House Democrats running for re-election in districts where the President's approval rating is upside-down. If this trend continues, it could be potentially catastrophic for Democrats, driving their generic numbers down even further.