This map shows the congressional districts Republicans won by less than five points; the districts they won by five to 10 points; and the districts they won by more than 10 points. It also shows the congressional districts Democrats won by less than five points; those they won by five to 10 points; and the districts Democrats won by more than 10 points. According to the map, the GOP won more districts by a greater margin in 2010, and Democrats had more close call districts won by a smaller margin. These are important factors that represent the depth of GOP victories this past election cycle and potential districts for future pick-ups. (To download PDF map, visit http://bit.ly/giW4uL)
Methodology: Results are compiled from election authorities, via the New York Times. The two remaining undecided seats were allocated to the party leading as of November 29, 2010.