"If I have a million bucks I might as well give it during the petition process," said Kevin Kennedy, the director and general counsel of the state's Government Accountability Board, which oversees elections in Wisconsin. But even during the election period, outside groups may spend unlimited amounts on advocacy media spots.
Jay Heck, the executive director of the Wisconsin chapter of Common Cause, predicted there will be "an avalanche of national interest" in the recall races.
"Everyone will be in here," he said. "It will be good for the restaurant business."
Former Sen. Scott Brown, R-Mass., candidate for U.S. Senate in New Hampshire, holds his hand over his heart during the singing of the national anthem as he waits to take the stage for his town hall campaign rally with Sen. John McCain at the Pinkerton Academy in Derry, N.H., on Monday, Aug. 18, 2014.