Senate Republican Leader Mitch McConnell will be running his first TV ad for re-election in Kentucky this week.McConnell campaign manager Jesse Benton confirmed with WFPL it will be a "positive buy" costing six figures and will begin airing Thursday.Thus far, the GOP leader has been pummeled by attack ads from liberal groups on gun regulations and birth control."Every out-of-state liberal group with an axe to grind is desperate to tear Mitch down at all costs, but we're going to make sure we communicate our positive message to every voter in the commonwealth," says Benton.The ad will reportedly target voters in the Louisville and Lexington areas.Observers note it is very early for an incumbent to launch television commercials.Polls have shown McConnell leading all rumored opponents including actress Ashley Judd. But those surveys also found McConnell to be the most unpopular U.S. Senator in the country and struggling to gain support.