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Party voting

Party cohesion

How often do Michigan legislators vote with their party?

Party Voting Unity

How often members of each party vote together on the same side.

Most Contentious Votes

Votes where both parties were most internally divided. Higher % = more divided.

SB 541

Health occupations; health professionals; licensing and regulation of dental therapists; provide for. Amends secs. 16221, 16226, 16323, 16601, 16605, 16621 & 16626 of 1978 PA 368 (MCL 333.16221 et seq.) & adds secs. 16651, 16652, 16653, 16654, 16655, 16656, 16657, 16658, 16659, 16660 & 20189.

49%
Senate pass 13-12 Oct 11, 2017
SB 517

Highways; bridges; feasibility study on tolling of certain highways; provide for. Amends title of 1951 PA 51 (MCL 247.651 - 247.675) & adds sec. 10r.

45%
House pass 31-25 Jun 24, 2020
HB 5055

Law enforcement: other; jurisdiction of sergeant at arms; modify. Amends sec. 2 of 2001 PA 185 (MCL 4.382).

43%
Senate pass 21-16 Nov 13, 2025
HB 4115

Liquor: hours; allowable hours for sale of alcoholic beverages; expand. Amends sec. 1114 of 1998 PA 58 (MCL 436.2114) & adds sec. 1116.

43%
House pass 57-44 Mar 18, 2021
SB 237

Use tax: definitions; data center equipment used by an enterprise data center; exempt. Amends sec. 4cc of 1937 PA 94 (MCL 205.94cc).

42%
House pass 55-41 Sep 25, 2024
SB 455

Property tax; exemptions; certain property located in a renaissance zone; modify exemption for. Amends sec. 7ff of 1893 PA 206 (MCL 211.7ff).

41%
House pass 31-26 Dec 11, 2019
HB 4906

Sales tax: exemptions; Test Amends sec. 4ee of 1933 PA 167 (MCL 205.54ee).

41%
House pass 63-45 Nov 13, 2024
HB 5097

Counties; boards and commissions; permit fee required for a government entity or telecommunication provider working within a county right-of-way; clarify limits, and clarify bonding and insurance requirements for telecommunication providers working within a county right-of-way. Amends sec. 19b, ch. IV of 1909 PA 283 (MCL 224.19b).

40%
House pass 58-36 Feb 28, 2018
SB 706

Transportation: other; definition of automated driving systems and automated vehicle roadway; modify and expand. Amends secs. 2b, 642 & 665 of 1949 PA 300 (MCL 257.2b et seq.) & adds secs. 665c, 665d, 665e & 666a.

40%
House pass 57-40 Jun 30, 2022
HB 4759

Property; conveyances; transfer of certain state-owned property in Ingham County; provide for. Creates land transfer act.

38%
Senate pass 16-7 Jun 28, 2017