More on Supermajorities and States with One Party Control

Folllowing last week’s election, there have been an increasing number of legislative chambers in which one party has a “supermajority”.  The importance of this, especially when both chambers and the governor’s office are all of the same party cannot be underestimated.  It takes even more power away from the minority party on a range of issues, such as taxes, or collective bargaining or any other controversial issue.   It might even mean the ability to have a quorum without anyone from the other party in attendance.   In those supermajority one party states, the dynamics will be less about the two parties, but more about factions within the supermajority party.

Below is a list of the states with some level of supermajority status.  Please note that there are still votes being counted in Ohio and California which might change the make-up of what states constitute a supermajority.  In the Georgia House of Representatives, there is one Independent who has not decided whether or not to caucus with the Republican majority, which would make that a supermajority.  Accordingly, this list will be updated as necessary.

States with Democratic Supermajorities in both houses, and a Democratic Governor:

States with Democratic Supermajorities in both houses, and an Independent Governor:
Rhode Island

States with Democratic Supermajorities in one house, and a Democratic Governor:
Illinois (3/5s)
New York (House)
West Virginia (Senate)
Vermont (Senate)

States with Republican Supermajorities in both houses and a Republican Governor:
North Carolina (3/5s)
North Dakota
Ohio (3/5s for most measures; pending two vote counts in the House)
South Dakota

States with Republican Supermajorities in one house and a Republican Governor:
Georgia [NOTE:  The Georgia House has 119 Republicans, 60 Democrats and one Independent who has not yet decided whether to caucus with the Republicans.  As of yesterday that representative has not decided.]

States with Republican Supermajorities in both houses and a Democratic Governor:

Please contact Jeff Hartgen at or 703.684.1110 if you have any questions regarding the content of this post.


Jeff Hartgen, Principal

Jeff Hartgen, Principal

Jeff Hartgen joined MultiState as a vice president in 2005, after almost five years with the global consulting company, Accenture, where he served first as a business development director for Accenture's Michigan government practice and then as its national state & local government relations manager. In that capacity, Jeff managed lobbyists in 27 states and localities and represented Accenture before national trade associations. Prior to Accenture, Jeff served in a variety of capacities in Michigan state government, including deputy chief of staff to the lieutenant governor, legislative liaison to the Department of Management and Budget, district and external affairs director for the senate majority leader, and policy advisor to the senate majority leader. He also served as a staff assistant to the United States Senate Republican Policy Committee in Washington, DC. He earned his undergraduate degree with a double major in political science and history from the University of Michigan and a Master of arts in history from the George Washington University. Jeff is a former president of the Washington Area State Relations Group. Email Jeff at
Jeff Hartgen, Principal

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