Go here for the source data and analysis:
http://richardcharnin.com/2010ElectionForecastModels.htm
The LV Model predicts a 234-201 GOP House and a 50-48 Democratic
Senate. Larry Sabato's Crystal Ball predicts a 233-202 GOP House and a 49-49 Senate. Electoral-vote.com has a 51-48-1 Democratic Senate and a 217-200 GOP House with 18 ties. But the registered voter (RV)
The Democrats lead the weighted average of 18 Senate RV polls by 8.5%. They lead the corresponding LV sub-samples by 0.9%.
The RV projections indicate a 53-45 Democratic Senate.
The GOP leads the latest 30 House Generic LV polls by 6.8%. They lead the latest 19 RV polls by just 0.7%.
The RV projections indicate a 221-214 Republican House.
The Democrats lead in the following Generic Ballot RV polls: Pew, ABC/
WaPo, CBS/NYT, McClatchy/Marist, Newsweek, NBC
Both House and Senate models assume an even UVA split of the undecided 10%.
Pre-election (RV) polls interview registered voters. Likely voters are
a sub-sample based on the Likely Voter Cutoff Model (LVCM). Media
pundits and political sites such as realclearpolitics.com focus on LV
polls during the final weeks of every election cycle while RV polls
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