It was not until the 1940s that public opinion polling became an established part of the political process.

Clinton led in nearly all nationwide opinion polling until January 2008.

He wrote numerous books and articles on public opinion polling.

She is the first woman to lead Nigeria's leading independent opinion polling and research organization.

The amount of public opinion polling conducted on the health care issue is staggering.

These types of data are used widely in public opinion polling and marketing.

Today, Reagan remains one of the nation's most popular presidents, according to opinion polling.

Opinion polling suggests that the British electorate would rather like an early election.

The candidates called off their campaigning after the killing on Monday, and opinion polling is also expected to stop.

Still, some recent opinion polling suggests that the public is following the action in the House only sketchily.