InsiderAdvantage — U.S. Senate — Maine

Verified directly against original InsiderAdvantage Maine 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: Troy Jackson 46.4%, Susan Collins 45.6%, Another candidate 2.6%, Undecided 5.4%. Exact original percentages, no normalization. Pollster source page dated September 26, 2026. Collection mode not specified on this particular topline; Methodology recorded as Other rather than inferred from later releases. Original table: https://insideradvantage.com/wp-content/uploads/2026/09/7869-scaled.jpg