" Polls taken in the immediate aftermath of this week’s debate between Vice President #KamalaHarris and former President Donald Trump showed that by a 23-point margin, debate-watchers thought Harris bested Trump in the matchup.The first batch of post-debate polls among the broader public confirm this trend, with our forecast margin in the national popular vote moving 0.8 percentage points in her direction by 5:00 pm Eastern on Friday, Sept 13.
If we look at all the polls that have been conducted entirely post-debate and compare them to each firms’ pre-debate surveys, Harris’s momentum is clear. Harris gained 1 point on margin according to an Ipsos/Reuters national poll; 2 points in RMG Research’s polling; 2 points according to Morning Consult; and 1 point according to SoCal Strategies. Polls from Leger and Redfield & Wilton Strategies show Harris losing 1 point and running even (respectively) compared to their last surveys."
https://projects.fivethirtyeight.com/2024-election-forecast/