The 1946 United States Senate elections in Arizona took place on November 5, 1946. Incumbent Democratic U.S. Senator Ernest McFarland ran for reelection to a second term, easily defeating his Republican challenger Ward S. Powers in the general election.
Democratic primary
Candidates Ernest McFarland, incumbent U.S. Senator Harry J. Valentine, Veterans' Service Officer
Results
Republican primary
Candidates Ward S. Powers
General election
See also United States Senate elections, 1946
References