caustic
Footballguy
Nationally, Hillary gained a couple points after the first debate in 2016. https://fivethirtyeight.com/features/will-the-first-presidential-debate-shake-up-the-race/This is VERY misleading. Pre-debate polls don't mean much. In 2016, Trump gained ground in several polls after the first debate.
And while polls do get more accurate the closer we get to November, the difference between labor day polls and election day polls is smaller than you might think....Not to mention, both Democrats and Republicans are solidly behind their candidate this year, so there’s less room for party members to “come home” to the base.
I’ll also point out that the first debate in 2016 actually seemed to help Hillary Clinton (who was a member of the incumbent party). Clinton led in our national polling average by 1.4 points on the day of the first debate; a week later, her lead was up to 3.7 points.