The 2008 election, which resulted in the selection of the first African-American president in the nation's history, was about change. Polls indicated that more than 80 percent of likely voters felt that the country was on the wrong track or moving in the wrong direction. For the first time since 1952, there were no candidates on either major-party ticket who have served as president or vice president.

As in 2004, the wars in Iraq and Afghanistan were important issues, yet foreign policy was strongly overshadowed by the economy when the credit and mortgage crisis hit full force in September. Other economic concerns included health-care costs, energy policy, gas prices, and rising unemployment. From the primary campaigns into the general-election contest, candidates positioned themselves as agents of change. Normally it is the party out of power in the White House that calls for change. In 2008, both parties claimed to offer “change,” as opposed to “more of the same.”

The candidates made these claims in an ad war that was unprecedented in its quantity and cost. Ads were created in rapid-response fashion, timed for the increasingly fast-paced news cycle. Also, as a reflection of the shift in popular culture toward the provocative tone of the Internet, which relies on bold statements and humor to inspire “forwardability,” the 2008 ads were noticeably sharper and more aggressive than that of previous elections.