1940 United States Senate special election in Illinois

1940 United States Senate special election in Illinois

← 1936 November 5, 1940 1942 →

Nominee Charles W. Brooks James M. Slattery Party Republican Democratic Popular vote 2,045,924 2,025,097 Percentage 50.07% 49.56%

Results by county Brooks:      40–50%      50–60%      60–70%      70–80% Slattery:      50–60%

U.S. senator before election James M. Slattery Democratic Elected U.S. senator Charles W. Brooks Republican

Elections in Illinois
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Ballot measures and referendums State capitol referendum (1834) Cutback Amendment (1980) Crime Victim Rights Amendment (1992) Illinois Governor Recall Amendment (2010) Public Pension Amendment (2012) Marsy's Law (2014) Right to Vote Amendment (2014) Transportation Taxes and Fees Lockbox Amendment (2016) Fair Tax (2020) Right to Collective Bargaining Amendment (2022)
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v t e

The 1940 United States Senate special election in Illinois took place on November 5, 1940.^[1] The election was triggered by the vacancy left by the death in office of Democrat J. Hamilton Lewis. After Lewis' death, James M. Slattery was appointed to fill the seat in the interim period until the individual elected in the special election would be sworn-in. Slattery was the Democratic Party's nominee in the special election. He was defeated by Republican nominee Charles W. Brooks. Brooks' father-in-law, Senator John Thomas of Idaho also won a special election that same day and the two would serve in the Senate together until Thomas' death in 1945.

The primaries and general election coincided with those for other federal elections (president and House) and those for state elections.^[1]

Primaries were held April 9, 1940.^[1]