1966 United States Senate election in Delaware

1966 United States Senate election in Delaware

November 8, 1966
 
Nominee J. Caleb Boggs James M. Tunnell Jr.
Party Republican Democratic
Popular vote 97,268 67,263
Percentage 59.12% 40.88%

County results
Boggs:      50–60%      60–70%

U.S. senator before election

J. Caleb Boggs
Republican

Elected U.S. Senator

J. Caleb Boggs
Republican

The 1966 United States Senate election in Delaware took place on November 8, 1966. Incumbent Republican U.S. Senator J. Caleb Boggs was re-elected to a second term in office, defeating Democratic nominee James M. Tunnell Jr. As of 2024, this is the last time Republicans won Delaware's Class 2 Senate seat.