The Michigan State Constitutional Convention Clearinghouse

Dark Money Funders:

• The Global Impact Social Welfare Fund ($385,000)
• American Opportunity Action ($300,000)
• The Fairness Project ($175,000)

As of April 20, 2026, these three groups had contributed $860,000 to the "No" Coalition. For partial coverage of these contribiutions, see Schuster, Simon D., More dark money flows to Michigan ballot groups, Bridge Michigan, April 27, 2026, and Schuster, Simon D., Who’s funding Michigan ballot campaigns? Dark money flows from out of state, Bridge Michigan, Oct. 29, 2025.

Powerful "No" Organizations

Michigan Education Association

Vote No on Proposition 1, MEA Flyer, March 12, 2026.

Con-Con for Michigan Students and Schools, MEA Position Statement, March 12, 2026.

MEA joins West Michigan & statewide groups to say: Vote NO on Con-Con to avoid risky changes to MI Constitution, MEA Press Release, July 30, 2026.

Michigan Chamber of Commerce

Two ballot proposals, big implications for Michigan, Michigan Chamber of Commerce Advocacy News, Sept. 25, 2026. "“It inserts uncertainty at a time when Michigan businesses and Michigan families are already facing significant economic challenges and uncertainty,” the Chamber’s Wendy Block recently told reporters."

Proposal 1: Why the Michigan Chamber is saying NO to a Con-Con, Latest News and Updates, Michigan Chamber of Commerce, Sept. 3, 2026.

March 20, 2026 | This Week in Government, Michigan Chamber of Commerce, March 20, 2026.

Chamber in the News: Business, labor, democracy groups unite in opposition to Constitutional Convention, Michigan Chamber of Commerce, March 19, 2026.

Chamber in the News: Ballot Initiatives and Structural Risks, Michigan Chamber of Commerce, April 2, 2026.

Local chambers

Detroit Regional Chamber

A Ballot Question That Transcends Partisanship, Detroit Regional Chamber, Oct. 7, 2026.*

Grand Rapids Chamber

Southwest Michigan Regional Chamber

Small Business Association of Michigan

Website: https://www.facebook.com/SmallBusinessAssociationofMichigan

Other:

Michigan’s Constitution Is on the Ballot This November, Small Business Association of Michigan, July 30, 2026. Originally published in SBAM’s July/August 2026 issue of FOCUS magazine.

Facebook post. May 20, 2026.

Michigan Manufacturers Association

Michigan Manufacturers Association Highlights Economic Risks of Con-Con, Urges NO Vote on Proposal 1, Michigan Business Network Sept. 14, 2026.

Michigan Democratic Party

MDP Endorses No Votes on Con-Con and Voter Suppression Ballot Measures, Michigan Democratic Party Press Release, March 23, 2026.

Michigan Health & Hospital Association (MHA)

MHA Race of the Week – Ballot Proposals, Michigan Democratic Party MHA Newsroom, Sept. 18, 2026.

Michigan Catholic Conference

News Release: Vote No on Proposal 1 to Keep Michigan Residents in Charge of State Constitution, Catholic Conference Says, Press Release, July 9, 2026.

The Word from Lansing: Catholics, Vote No on Proposal 1 This November, Michigan Catholic Conference, Sept. 16, 2026.