During the 2008 presidential election, WebcastingTV broadcast extensively for Mike Huckabee for President. We sent a total of 27 broadcast in 18 states, and delivered over 22 million individual emails.

Below is an image and link to one of the email broadcasts:

A series of broadcasts were sent. Each one had a primary "issue" it addressed. WebcastingTV traced the results of each broadcast and identified the "most reactive" issues.
At right is a graph showing the open rate for each topic.

Early in the election, WebcastingTV broadcast a series of emails in Iowa. Mike Huckabee's poll numbers increased with each broadcast.

The graph below shows the correlation between email broadcast and the average RealClearPolitics poll.