Montana voters will decide this November whether Initiative 194, known as the Montana Plan, should make the state the first in the nation to prohibit corporations from spending money on elections. The proposal is designed to work around the U.S. Supreme Court’s 2010 Citizens United ruling, which recognized corporations’ and unions’ First Amendment right to spend unlimited amounts independently of candidates, rather than challenge that ruling directly. It would bar corporations, unions, 501(c)(4) nonprofits and other artificial persons from political spending, including entities doing business in Montana without being chartered there. Wealthy individuals could still spend freely, but would lose the ability to do so anonymously. Supporters include Democrat Sam Forstag and former Republican Governor Marc Racicot, while Montana’s Republican Party and business groups oppose it. Legal experts disagree over whether the measure could survive review by the Supreme Court’s conservative majority. Similar proposals are active or under consideration in 32 states, and Hawaii’s legislature passed a comparable law earlier this year. The effort draws on Montana’s history of restricting corporate political influence, including its 1912 Corrupt Practices Act, which was struck down by the Supreme Court in 2012. A Brennan Center for Justice survey found that 79% of Americans across parties support a constitutional amendment restoring limits on political spending.