There are different sources for researchers to access individual questions, though iPOLL is the most current and accessible of its kind.
Coverage:
Over 500,000 Qs & As 1935-present
1986-present
1985-present
Currency:
Updated daily
Weekly
Multiple times weekly
Search:
Question texts/responses, topics, survey organizations, dates
Question texts/responses, topics, universe, survey firms, dates
Keyword, topics
Additional Features:
Search within a result set, bookmark searches/questions, sorting options, access to datasets
Includes non US samples and some state/regional data
Newsletter twice a month