As of November 14, there are still a handful of Congressional races yet to be called. Nonetheless, if those that are currently leaning toward the GOP end up in the Republican column, we’ll begin the 114th Congress with 247 Republicans and 188 Democrats in the House, a pickup of 13 seats for the GOP. Assuming that Mary Landreiu loses reelection in the runoff election on December 6, the Senate will have 54 Republicans and 46 Democrats, a pickup of 9 seats in the Senate for the GOP.
In October, PS: Political Science and Politics published a collection of forecasts of the 2014 midterm elections. These were forecasts done by political scientists who make predictions based on election “fundamentals” such as presidential approval and economic conditions, and done several months before the election took place. (Notably, these models do not include information on things like campaign spending, candidate competence/appeal, etc.) The average (median) prediction was that the Republicans would pick up 14 seats in the House and 5 or 6 seats in the Senate.
All in all, not a bad showing for the science of political science election forecasting in 2014.
|Predicted result||Actual result||Margin of error (difference / total seats)
|House||+ 14 GOP||+ 13 GOP||0.2%|
|Senate||+ 5 or 6 GOP||+ 9 GOP||3.5%|