It’s no longer news when Majority Leader Harry Reid takes to the floor of the Senate to denounce the Koch brothers. But most Americans probably don’t know that Reid and many of his Democratic colleagues now want to amend the U.S. Constitution in far-reaching ways to put an end to the conservative billionaires’ political influence.

“The shadowy Koch brothers are attempting… a hostile takeover of American democracy,” Reid charged Thursday. “No one should be able to pump unlimited funds into a political campaign.”