The 1966 United States Senate elections in Michigan were held on November 7, 1966. Incumbent Republican U.S. Senator Robert P. Griffin, who had been appointed to the seat in May to fill the vacancy left by the death of Patrick V. McNamara, was re-elected to a full term in office. Griffin defeated Democratic former Governor G. Mennen Williams in the regularly scheduled election, as well as the concurrent special election to complete McNamara's unfinished term.
Democratic primary Candidates Jerome P. Cavanagh, Mayor of Detroit G. Mennen Williams, Assistant U.S. Secretary of State for Africa Affairs and former Governor of Michigan (1949–1961)
Results
Republican primary
General election Results Regular
Special
See also 1966 United States Senate elections
References