The House generic ballot, a national polling question that gauges voter intentions in the House vote, often fluctuates a lot from poll to poll. For instance, a poll that is highly rated by FiveThirtyEight’s pollster ratings, Monmouth University, fluctuated from a 15-point Democratic lead in December 2017 to a two-point Democratic lead in January back up to an eight-point Democratic lead most recently.
That said, the overall average of these polls has told a relatively consistent story. CONT.
Alan I. Abramowitz (Emory), Sabato’s Crystal Ball
Recent polls: Generic congressional ballot