Scott Harshbarger, president of Common Cause, a group that monitors campaign spending, said, "People are giving who have clear business before these committees."

"The individual can still make a very substantial contribution," said Don Simon, the acting president of Common Cause.

"There won't be anyone left to conduct the investigation," said Scott Harshbarger, the president of Common Cause.

"They didn't come together probably because this is such a dramatic change," said Chellie Pingree, the national president of Common Cause.

"He has a right to earn a living," said Scott Harshbarger, president of Common Cause.

"They shouldn't be doing it," said Fred Wertheimer, the president of Common Cause.

From 1970 to 1975, Mr. Conway was the first president of Common Cause.

"People on the committee haven't been doing their job," said Fred Wertheimer, president of Common Cause, the public interest lobby.

"We're at a point were we don't have a real electoral process," said Fred Wertheimer, president of Common Cause, a lobbying group.

Fred Wertheimer, president of Common Cause, said the study showed that changes were needed to reduce the influence of political action committees.