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1966 California U.S. House District 18 Election
California · 2 candidates
Mathias +11.8 pts · won by 20,353 votes
Robert MathiasRepublicanWINNER55.88%
96,699 votes
Harlan HagenDemocratic44.12%
76,346 votes
Popular-vote totals for U.S. Senate elections come from the MIT Election Data and Science Lab (1976–2024).