1966 United States Senate election in Delaware

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. , this is the last time Republicans won Delaware’s Class 2 Senate seat.

Candidates

 * J. Caleb Boggs, incumbent U.S. Senator (Republican)
 * James M. Tunnell Jr., former Justice of the Delaware Supreme Court and son of former Senator James M. Tunnell (Democratic)