and the lines are the smoothed lowess trends in the series.
Even worse for the Republicans is that their favorability rating continues to degrade. Their average net rating was -13 prior to the 2012 election and has averaged -22 since then. Meanwhile, the net rating for Democrats has shifted from and average of +.6 prior to the election to an average of +2.3 since the election. Theses swings in party fortunes are summarized below, where I plot the overall Democratic advantage in favorability.