Democrats have taken a tumble on the generic congressional ballot over the last few months. Their advantage in an average of the last five live interview polls is just under 7 percentage points, and it’s even lower when you consider other polls.
The Democrats, though, have been taking solace in special election results since Donald Trump became President. In over 120 special congressional and state elections, they’ve been outperforming the partisan baseline based on the last two presidential elections by an average of 12 percentage points. A swing of greater than 7 points is generally consistent with Democrats taking over the House in November, though the exact break point is not knowable.
Special election results haven’t been nearly as good for Democrats since the beginning of April, however. CONT.
Harry Enten, CNN