One of the greatest frustrations I had during my 18 years representing the great state of Montana in the U.S. Senate was watching, in real time, the ever-increasing flood of corporate money poison our political discourse. Washington couldn’t — or wouldn’t — fix the problem unleashed by the Supreme Court’s 2010 decision in Citizens United, which allowed unlimited independent spending on elections by corporations and unions on free speech grounds. But now there’s a quiet revolution happening in the states that could finally take corporate money out of politics. And I’m proud that my home state is helping lead the way. This fall, Montana voters will have a chance to approve what’s known as the “Montana Plan,” a novel ballot initiative that would redefine corporate powers in our state. It’s based on a simple premise: The state has always had the authority to dictate a corporation’s powers, and it has the authority to change them. If the ballot measure passes, spending money in Montana elections will no longer be one of those granted powers. The Montana Plan ballot in