Political party strength in Michigan
The tables below indicate the political party affiliation of elected officials in the U.S. State of Michigan from statehood through March 2018.
Officials listed include: Governors, Lieutenant Governors, Secretaries of State, Attorneys General and State Treasurers. The tables also indicate the historical party composition in the State Senate, State House of Representatives, the names and party affiliations of Michigan's U.S. Senators, and the party composition of Michigan's delegations to the U.S House of Representatives. For years in which a presidential election was held, the tables show which party's nominees received the State's electoral votes.
The parties are indicated as follows: , , and , with purple.In 1963, the Michigan Constitution was rewritten, modifying the statewide elected positions.20th century – 1965 to 1999
