In a 30-minute campaign advertisement worth millions, Barack Obama avoided to claim that he would be a flawless leader, explaining that sincerity and protection were the key words to his potential presidency.

Throughout the commercial aired on Wednesday night by almost all major broadcast networks, viewers found out what the Democratic presidential candidate’s plans are for the middle class in the midst of the economic crisis, less than a week before the long awaited Election Day.

“I will not be a perfect president,” Barack Obama said in the spot. “But I can promise you this – I will always tell you what I think and where I stand,” he added.

Supporters said that the ad, whose cost reached approximately $4 million, represented a concluding outline of Barack Obama’s entire campaign.

The half-hour spot ran at the same time on CBS, NBC, Fox, as well as BET, Univision, MSNBC and TV One, and combined close-ups of Barack Obama with scenes depicting Americans talking about their financial and health problems.

Besides the images showing the Democratic presidential candidate in a room that looked a lot like the Oval Office and at the Democratic National Convention, the commercial also presented his spouse, Michelle Obama, his two daughters and old photos portraying his African American father from Kenya and his white mother from Kansas.

The ad ended with a live broadcast of a campaign rally in Florida, a state that is known for its Republican views, thus representing a significant challenge for Barack Obama.

Unable to outshine his opponent’s advertisement in primetime television, John McCain criticized Obama during a campaign stopover in Florida. “He’s got a few things he wants to sell you: He’s offering government-run health care ... an energy plan guaranteed to work without drilling ... and an automatic wealth spreader that folds neatly and fits under any bed,” he said, adding that the Democratic presidential candidate failed to keep his promise with regard to a pledge he had signed and did not comply with.

In spite of the fact that Barack Obama did not describe new plans in the commercial, he did highlight his intention of reducing taxes, so as to “restore the long-term health of our economy and our middle class.”

ABC was the only major broadcast network to skip Obama’s campaign ad and had to carry on with its usual Wednesday night lineup. In an effort to protect its problematic schedule, ABC had tried to convince the Obama campaign to run the commercial on a different night. However, when the network decided to make space for the 30-minute commercial, it was too late, as the campaign had already completed the buy, the Associated Press cited anonymous sources aware of the situation as saying.

It’s only a matter of time before we find out whether the Obama special managed to draw voters. And I have a feeling that there’s more to come until Election Day.