Last week, New Mexico Senator Tom Udall, Colorado Senator Michael Bennet and five fellow Democratic colleagues, proposed an amendment to the U.S. Constitution that would allow Congress to regulate the campaign finance system. Long an advocate of campaign finance reform, Udall seeks to overturn the U.S. Supreme Court’s recent ruling in the Citizens United decision, in which the high court ruled it unconstitutional to regulate the money spent during elections by corporations and unions. In that decision, the Court essentially based its ruling on an earlier Supreme Court decision of 1976, Buckley v. Valeo, which ruled that spending money in elections is a form of speech.