The best and worst pollsters of 2024

Simple average error, Advanced Plus-Minus scores, bias, and number of polls in the final 21 days before Senate, House and gubernatorial general elections in the 2023-24 cycle, for pollsters that conducted at least five such polls

(Please use a modern browser to see the interactive version of this visualization)

Note: Advanced-Plus-Minus describes how each pollster’s average error compares to other pollsters’ in the same election. Negative Plus-Minus scores are better. Polls that are banned by the Silver Bulletin are excluded from the analysis. The 21 day cutt-off is based on a poll's median field date.