1904–05 United States Senate elections
US Senate elections

The 1904–05 United States Senate elections were elections for the United States Senate between January 19, 1904, and April 20, 1905, coinciding with President Theodore Roosevelt's landslide election to a full term and the 1904 House of Representatives elections. As these U.S. Senate elections were prior to the ratification of the Seventeenth Amendment in 1913, senators were chosen by state legislatures. Senators were elected over a wide range of time throughout 1904 and 1905, and a seat may have been filled months late or remained vacant due to legislative deadlock. In these elections, terms were up for the senators in Class 1.
Events of the election
The party share of seats remained roughly the same, when including vacancies and appointments, and the Republicans retained a significant majority over the Democrats.
Special elections were held in Indiana and Massachusetts, in the former due to the ascension of Charles Fairbanks to the Vice Presidency and in the latter due to the death of longtime Senator George Hoar.
In Georgia, the legislature failed to elect until shortly after the beginning of the 59th Congress on March 4. In Delaware the legislature deadlocked and did not elect a Senator until June 1906.
Results summary
Senate party division, 59th Congress (1905–1907)
Majority party: Republican (58)
Minority party: Democratic (32)
Other parties: (0)
Total seats: 90
Shifts in party control post-election
Despite legislative deadlocks and the long periods of vacancy in some states, the Republican Party's dominance in the Senate was further solidified in these elections. The party's strong performance in the Senate mirrored President Theodore Roosevelt's landslide victory in the 1904 presidential election.
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