The U.S. Supreme Court has struck down a century-old Montana law banning corporate campaign spending. Montana was sued when it invoked the ban to prevent corporate money from flooding state and local political races. A right-wing non-profit argued the state's ban violates the 2010 Citizens United ruling that allowed corporations to spend unlimited amounts in federal elections. On Monday, the Supreme Court agreed, blocking Montana's law in a divided 5-to-4 ruling. The decision has drawn a rare bipartisan rebuke from Montana officials. We speak to John Bonifaz, co-founder and director of Free Speech For People and the legal director of Voter Action. "For more than a century, Montana had [barred] corporate money in elections," Bonifaz says. "Now, the United States Supreme Court has said to the state of Montana that the facts don't matter. ... We demand a constitutional amendment to [overrule] the Supreme Court, and to make clear that we the people, not we the corporations, rule in America."