The New York Times/Siena College polls of 3,662 registered voters in Arizona, Georgia, Michigan, Nevada, Pennsylvania and Wisconsin were conducted in English and Spanish on cellular and landline telephones from Oct. 22 to Nov. 3, 2023. When all states are joined together, the margin of sampling error is plus or minus 1.8 percentage points for all registered voters and plus or minus 2 percentage points for the likely electorate.
It wasn’t just landlines because they know that’s bad polling.