1926 United States Senate election in Illinois

The 1926 United States Senate election in Illinois took place on November 2, 1926.

Incumbent first-term Republican senator William B. McKinley, lost renomination in the Republican primary.

The U.S. Senate ultimately refused to seat the election's winner, Republican Frank L. Smith, due to allegations of election fraud.

Election information
The primaries and general election coincided with those for House and those for state elections. Primaries were held April 13, 1926.

Candidates

 * George E. Brennan, chairman of the Cook County Democratic Party
 * James T. McDermott, former U.S. Representative from Chicago
 * James O. Monroe, attorney and perennial candidate

Candidates

 * William B. McKinley, incumbent U.S. senator
 * Frank L. Smith, former U.S. Representative from Dwight and candidate for Senate in 1920

Candidates

 * Parley Parker Christensen, chairman of the Illinois Progressive Party and 1920 Farmer–Labor Party presidential nominee

Candidates

 * George E. Brennan, chairman of the Cook County Democratic Party (Democratic)
 * Parley P. Christensen, chairman of the Illinois Progressive Party and 1920 Farmer–Labor Party presidential nominee (Progressive)
 * J. Louis Engdahl, journalist and newspaper editor, candidate for U.S. Senate in 1924 (Workers)
 * Samuel C. Irving (Independent)
 * G. A. Jenning (Socialist Labor)
 * James H. Kirby (Independent Democrat)
 * James A. Logan (High Life)
 * Morris Lynchenheim (Commonwealth Land)
 * Hugh S. Magill, former Illinois state senator and candidate for U.S. Senate in 1912 (Independent)
 * Raymond T. O’Keefe (Light Wines and Beer)
 * Frank L. Smith, former U.S. Representative from Dwight (Republican)
 * John T. Whitlock (Socialist)