2012 United States House of Representatives election ratings
The 2012 United States House of Representatives elections were held November 6, 2012, to elect representatives from all 435 congressional districts across each of the 50 U.S. states. The six non-voting delegates from the District of Columbia and the inhabited U.S. territories will also be elected. Numerous federal, state, and local elections, including the 2012 presidential election and the 2012 Senate elections, were also held on this date. Election ratings. Several sites and individuals publish ratings of competitive seats. The seats listed below were considered competitive (not "safe" or "solid") by  at least one of the rating groups. These ratings are based upon factors such as the strength of the incumbent (if the incumbent is running for re-election), the strength of the candidates, and the partisan history of the district (the Cook Partisan Voting Index is one example of this metric). Each rating describes the likelihood of a given outcome in the election. Most election ratings use: Key: