The Colorado Secretary of State's office said Wednesday that supporters of the initiative collected enough signatures to put the question on the ballot. The proposal would also instruct state lawmakers to ratify the campaign finance limits if Congress chooses to pass them.
But the ballot question would be symbolic and have no practical effect if it passes because such a measure can't require state or congressional representatives to support certain policies.
The proposal addresses 2010 U.S. Supreme Court Citizens United ruling lifted many restrictions on spending from corporations and unions in elections.
The question will appear on the Colorado ballot as Amendment 65.
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