Two hours dedicated to political TV commercials on Las Vegas stations in last five days . Nationwide $ 40 million in money spent on Senate races , $ 46.6 million spent on House races . Bloomberg predicts all political and issue TV advertising in 2010 will exceed $ 3 billion .
Fifty hours dedicated to political TV commercials on Las Vegas stations in last seven days . Nationwide $ 40 million in ads spent on Senate races , $ 46.6 million spent on House races . Analyst predicts all political and issue TV advertising in 2010 will exceed $ 3 billion .