Whitmer Vetoes Nine Bills After Supreme Court Forced Legislature to Present Them — A Government Accountability Explainer

Nine bills affecting Michigan workers, debtors and history museums sat in limbo for about 18 months before the Michigan Supreme Court on July 10 left standing an order requiring lawmakers to send them to Gov. Gretchen Whitmer. Whitmer vetoed all nine hours later. What is usually a routine constitutional handoff ended only after the Michigan Court of Appeals said the Legislature had a mandatory duty to complete it.

The bills were House Bills 4177, 4665, 4666, 4667, 4900, 4901, 5817, 5818 and 6058.

Their subjects were far from procedural. Together, they dealt with history-museum funding, retirement benefits for corrections employees, public-worker health insurance and protections for people facing debt collection.

HB 4177 would have created the History Museum Authorities Act, allowing county voters to approve a history museum authority and a property-tax millage for qualifying history museums, including museums in Detroit. It passed the House on June 20, 2024, and the Senate on Dec. 20, 2024. HB 5817 and HB 5818 would have barred other tax-increment-financing and brownfield authorities from capturing museum-millage revenue connected to HB 4177.

HB 4665, HB 4666 and HB 4667 would have allowed certain Department of Corrections employees to leave a defined-contribution retirement plan and enter the State Police Retirement System's hybrid pension plan.

HB 6058 would have required public employers to cover a larger share — about 80% — of workers' health-insurance costs while limiting what employees could be required to pay.

HB 4900 and HB 4901 would have expanded exemptions protecting wages, money and property from garnishment and execution in debt-collection cases. They also would have changed property exemptions in bankruptcy and debtor-estate rules.

Labor and public-sector advocates backed the measures. They passed during the 2023-24 legislative term, when Democrats controlled the House, Senate and the governor's office. But winning votes in both chambers did not mean the bills became law.

The House passed HB 4665, 4900, 5817 and 6058 on Dec. 13, 2024, and the Senate passed all nine bills on Dec. 20, 2024. That same month, then-House Speaker Joe Tate ended the chamber's lame-duck session after Republicans and Democratic Rep. Karen Whitsett boycotted the floor, leaving the House without a quorum.

Republicans took control of the House in January 2025, with Matt Hall becoming Speaker on Jan. 8, and did not forward the bills to Whitmer, setting off a legal fight with Senate Democrats. House Republicans maintained that the prior Democratic leadership, rather than the incoming GOP majority, should have enrolled and presented the bills before control changed.

The Michigan Court of Appeals rejected that argument. Article 4, Section 33 of the Michigan Constitution states: "Every bill passed by the legislature shall be presented to the governor." The court ruled that wording creates a ministerial duty, not a procedural choice, and that the House could be compelled through mandamus to send the nine bills to the governor.

The Michigan Supreme Court heard arguments May 6, 2026. On July 10, the court denied leave to appeal in an unsigned order, saying it was not persuaded that the questions presented warranted review. That left the mandamus ruling in force.

But by the time the bills reached Whitmer, the delay had created another problem. Because the Legislature adjourned sine die on Dec. 31, 2024, bills signed in 2026 without immediate effect would have taken effect retroactively to April 1, 2025 — more than 15 months earlier — under the constitutional requirement that such bills take effect 91 days after sine die adjournment.

"Implementing these bills retroactively would impose an insurmountable administrative burden on the state and all Michiganders affected," Governor Gretchen Whitmer said. "It would give rise to endless litigation."

"Many of these bills have statutory deadlines that have long since passed," Governor Gretchen Whitmer said.

"This was political gamesmanship at its worst," Governor Gretchen Whitmer said. "Michiganders deserved better from the House."

"For these reasons, I must regrettably veto these bills," Governor Gretchen Whitmer said.

The underlying proposals are not necessarily finished. Governor Gretchen Whitmer said she is open to working with lawmakers on new versions and singled out a pension bill for corrections officers as a priority.

Still, the sequence leaves a stark accountability question. None of the nine measures took effect. Proposals on corrections-officer pensions, public-employee health-insurance cost-sharing, debt-collection protections and museum funding must begin the legislative process again.

For Sterling Heights voters, the case is a measure of accountability in Lansing: when a change in partisan control turns a mandatory constitutional handoff into a standoff, bills can be delayed until implementation becomes impossible — even when courts order the process to proceed.