<prompt> Generate a list of 3 to 4 key takeaways from the article.CNNs consultant on political television advertising believes that the cost to influence the 2008 election may exceed 3 billion.  <response>: 1. The 2008 election was expected to be very expensive in terms of advertising.2. The cost for political advertising in 2008 may have surpassed 3 billion.3. Advertising is viewed as a decisive factor in the outcome of the election.4. CNNs consultant on political television advertising provided this estimation. 