"POS, with the help of data from the Gallup Organization and information from our friends at National Journal and The Cook Political Report, took a look at how presidential approval effected mid-term House losses for the President’s party in every mid-term election since 1962. The results were staggering. If the President’s approval rating was 60% or higher, the President’s party picked up an average of 1 seat. If the approval rating was between 50 and 59%, the average loss was 12 seats. Finally, if the President’s approval rating was below 50%, the average loss was 41 seats (one seat more than the 40 seats GOPers need to win back control of the House)."
- Public Opinion Strategies