InsiderAdvantage — U.S. Senate — Iowa

Verified directly against the original InsiderAdvantage Iowa topline image during audit 2026-10-19. N=1,200 likely voters; fieldwork September 22–23, 2026; stated margin of error 2.83%. Initial Senate vote-intention ballot: Josh Turek 47.4%, Ashley Hinson 45.7%, Thomas Laehn 1.6%, Another candidate 0.9%, Undecided 4.4%. Exact decimals from original, no normalization. Pollster source page is dated September 26, 2026. Collection mode is not specified on this particular topline, so Methodology is recorded as Other rather than inferred from a later poll. Original table: https://insideradvantage.com/wp-content/uploads/2026/09/IA_IOWAPOLL_SEP23.jpg