In the 1930s era, parties hire pollsters to conduct survey research for their candidates, leaving the candidates beholden to the party for the data.
A pollster is someone who surveys voters to find out who they are voting for and to gather other information about voters' opinions. Polls often try to predict the outcome of elections by polling people before or just after they vote. Polls may also ask people about their opinions on social and political issues. Created in 1939, Pollster comes from the poll, meaning "to vote" or "to poll", originally meaning "hair". This meaning was first extended from "heads" to "people" and then to "counting heads" in the 1620s.
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