United States Senate election in Illinois, 1966
The 1966 United States Senate election in Illinois took place on November 8, 1966. Incumbent Democratic United States Senator Paul Douglas, seeking a fourth term in the United States Senate, faced off against Republican Charles H. Percy, a businessman and the 1964 Republican nominee for Governor of Illinois. A competitive election ensued, featuring campaign appearances by former Vice-President Richard M. Nixon on behalf of Percy. Ultimately, Percy ended up defeating Senator Douglas by a fairly wide margin, allowing him to win what would be the first of three terms in the Senate.
- Charles H. Percy (R), businessman and nominee for Governor in 1964
- Paul Douglas (D), incumbent United States Senator
- Robert Sabonjian (I), Mayor of Waukegan
|Republican||Charles H. Percy||2,100,449||54.95%||+9.75%|
|Democratic||Paul H. Douglas (inc.)||1,678,147||43.90%||-10.73%|
|Republican gain from Democratic||Swing|
- Perlstein, Rick. Nixonland: The Rise of a President and the Fracturing of America. New York: Scribner, 2008. Print.
- "Statistics of the Congressional Election of November 8, 1966" (PDF). Clerk.house.gov. Retrieved 2015-04-05.