noun. One that takes public-opinion surveys.

noun. A professional whose primary job is conducting pre-election polls.

noun. someone who conducts surveys of public opinion

"Beyond measuring public opinion and predicting campaign outcomes the work of a pollster is all about setting expectations."

asker  enquirer  inquirer  querier  questioner  

bolster  holster  upholster  

'friends'  assemblyman  centralism  co-chair  co-founder  

asker  catechist  cross-interrogator  cross-questioner  detective