All data are rounded down, which is why a value of 50% indicates a Democrat win.

Below is a chart that shows the probability distribution of the Democrats' head-to-head vote share in based on pollsters that are well-rated by 538 since the Sept 10 presidential debate. Vertical black lines indicate a roughly 95% confidence interval.

Polling Data

Credit to 538 for their incredibly generous sharing of aggregate 2024 polling data.
Pollster Poll Date Pollster Rating Popular Vote Head to Head
AtlasIntel Oct 12 - 17
Harris48.1%
Trump48.4%
Harris49.8%
Trump50.2%
AtlasIntel Oct 12 - 17
Harris48.4%
Trump48.3%
Harris50.1%
Trump49.9%
Emerson Oct 05 - 08
Harris49.2%
Trump48.1%
Harris50.6%
Trump49.4%
RMG Research Sep 30 - Oct 03
Harris49%
Trump49%
Harris50.0%
Trump50.0%
AtlasIntel Sep 20 - 25
Harris50.6%
Trump47.7%
Harris51.5%
Trump48.5%
AtlasIntel Sep 20 - 25
Harris50.5%
Trump47.7%
Harris51.4%
Trump48.6%
Remington Sep 16 - 20
Harris48%
Trump49%
Harris49.5%
Trump50.5%
Emerson Sep 15 - 18
Harris48.8%
Trump49%
Harris49.9%
Trump50.1%