
Right now,
polling report has this useful graphic on the right. In the eight generic ballot polls that have been released over the past month, Democrats hold an average lead of 50.4%--36.5%, or just under 14%.
Going back through the last four election for the House, here are the percentages of undecideds Republicans have scooped up from final pre-election poll averages, and the percentage of third-party votes in each election:
Year RU% TP%
1998: 50% (3.2%)
2000: 65% (3.8%)
2002: 76% (3.1%)
2004: 59% (2.4%)
(Note that in the source link I was wrong about the Democratic percentage on 2002. I wrote that Democrats received 47.5% that year, but they actually received 45.9%. These numbers reflect the accurate totals).
Now, given these totals, let's look at the absolute worst case scenario for Democrats right now. The worst case is for third-parties to reach 3.8% of the total vote, and for Republicans to scoop up 76% of the undecided vote. In that scenario, based on the current generic poll average, the final national vote totals would 52.6% Democratic, and 43.6% Republican. In 1994, the vote totals were 52.3% Republican, 45.5% Democratic. Even in the worst case scenario right now, things look worse for Republicans than they looked for Democrats in 1994.
The best-case scenario for Democrats, 2.4% third-party vote and 50% of undecideds, yields a final result of 55.7% Democratic, and 41.9% Republican. That result would be twice the Republican margin in 1994.
If you want to know why
Republicans are worried and losing it, this is why. The situation they face right now is much worse than the situation Democrats faced in 1994. Now,
I don't expect the race to stay this close, and sophisticated gerrymandering might mute the Democratic advantage in several areas. Then again, Democrats need to win significantly fewer seats in 2006 (15) than Republicans needed to win in 1994 (42), and
the Democratic recruitment advantage should provide us with a boost from the final polls to the final results. I am also not worried about a huge fall off for Democrats when polls shift from registered voters to likely voters, since Democrats appear to be turning out at much better rates than Republicans this time around. The situation could hardly be any better. We need to make sure we keep up the pace.