States try to pull plug on 'robo-calls'

States are trying to disconnect computer-generated political calls that are flooding the nation's households at election time.

More than 5 million automated "robo-calls" have been made to potential voters in early primary states. The number of robo-calls could run into the hundreds of millions this election year as the political parties battle for control of the White House, Congress and state governments.

"What's making people mad is the volume of calls," says Jerry Dorchuck of Political Marketing International, which provides automated calling services to candidates. "People can get 25 automated calls on the day before an election."