# 1938 United States Senate election in Illinois

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vte :
The 1938 United States Senate election in Illinois took place on November 8, 1938. Incumbent first-term Democrat William H. Dieterich retired. Fellow Democrat Scott W. Lucas was elected to succeed him.

## Background

The primaries and general election coincided with those for House and those for state elections.
Primaries were held April 12, 1938.

## Democratic primary
### Candidates

* Michael L. Igoe, United States Attorney for the Northern District of Illinois and former U.S. congressman
* Newton Jenkins, perennial candidate
* Albert Lagerstedt
* Scott W. Lucas, U.S. congressman
* John J. Sullivan

### Results

Democratic primary :
| Party | Party | Candidate | Votes | % |
| | Democratic | Scott W. Lucas | 801,761 | 49.92 |
| | Democratic | Michael L. Igoe | 726,477 | 45.23 |
| | Democratic | Newton Jenkins | 32,808 | 2.04 |
| | Democratic | John J. Sullivan | 31,964 | 1.99 |
| | Democratic | Albert Lagerstedt | 13,236 | 0.82 |
| Total votes | Total votes | Total votes | 1,606,246 | 100 |

## Republican primary
### Candidates

* William J. Baker
* Richard J. Lyons, U.S. congressman
* Clarence P. Parker

### Results

Republican primary :
| Party | Party | Candidate | Votes | % |
| | Republican | Richard J. Lyons | 505,659 | 73.51 |
| | Republican | William J. Baker | 105,482 | 15.33 |
| | Republican | Clarence P. Parker | 76,784 | 1.12 |
| Total votes | Total votes | Total votes | 687,925 | 100 |

## General election

1938 United States Senate election in Illinois :
| Party | Party | Candidate | Votes | % |
| | Democratic | Scott W. Lucas | 1,638,162 | 51.32% |
| | Republican | Richard J. Lyons | 1,542,574 | 48.33% |
| | Prohibition | Enoch A. Holtwick | 10,707 | 0.34% |
| | None | Scattering | 569 | 0.02% |
| Majority | Majority | Majority | 95,588 | 2.99% |
| Turnout | Turnout | Turnout | 3,192,012 | |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |