Americans for Prosperity, the Tea Party organization backed by the Koch brothers, is set to begin a $25 million advertising assault aimed at President Obama, its largest effort to date.
The ad campaign is the latest example of how independent political groups funded by a small number of wealthy donors are shaping the presidential campaign in key swing states. Conservative groups and “super PACs” have been particularly aggressive, pummeling Mr. Obama on the airwaves as Mitt Romney’s campaign waits until after the Republican National Convention — when it will be legally permitted to spend the hundreds of millions of dollars it has raised in recent months — to ramp up its advertising efforts.
American for Prosperity said that the first of several ads would begin appearing on Wednesday in 11 battleground states, including here in Florida. The campaign will last for three weeks — extending through Labor Day weekend — and includes Colorado, Iowa, Minnesota, Nevada, New Mexico, North Carolina, Ohio, Pennsylvania, Virginia, and Wisconsin.