Obama To Air TV Special Tonight Barack Obama is set to air his half-hour TV special on most of the major networks tonight, an experiment in long-form TV advertising that hasn't been attempted since Ross Perot -- and not by any major-party nominee in many decades. This is in many ways a tribute to the massive fundraising ability of the Obama campaign that they could even think to attempt this, in contrast to Perot's self-financing.McCain Ad: Obama Isn't Ready To Be President "Yet" The new McCain ad, set to air nationally in order to pre-rebut Barack Obama's TV special tonight, rolls many of the campaign's attacks against Obama into one single spot for the home stretch -- that Obama is a vapid celebrity who will raise your taxes and isn't ready to lead the country in tumultuous times:"The fact is Barack Obama's not ready -- yet," the announcer says. The use of the word "yet" seems rather odd here. The campaign seems to have hit a wall in their efforts to paint Obama as an extremist who shouldn't be trusted with the presidency at all, and are now saying that voters should wait a few more years if they really want to elect him president.Obama Ad Hits McCain On The Economy -- And Palin This new Obama ad, targeted at key states, uses text (but not an announcer) to remind viewers of all those quotes from John McCain where he admits he doesn't know much about the economy -- then proceeds to hammer him for picking an unqualified joke of a running mate to give him advice on these issues:"I might have to rely on a vice president that I select," McCain is quoted in the on-screen text. "His choice?" we are then asked, followed by video of a winking Sarah Palin from the veep debate.Obama In North Carolina, Then Campaign In Florida With Biden -- And Bill Clinton Barack Obama is holding a 12 p.m. ET rally in Raleigh, North Carolina, a joint rally with Joe Biden at 4:30 p.m. ET in Sunrise, Florida, and then an 8:30 p.m. ET rally with none other than Bill Clinton in Kissimmee, Florida. This will be the...

Blog: McCain's new spot seeks to counter Obama's long ad with talk of taxes and experience.