The 2016 Missouri Senate election was held on November 8, 2016, to determine which party would control the Missouri Senate for the following two years in the 99th Missouri General Assembly. All odd-numbered seats were up for election, which consisted of half of the 34 senate seats, as well as a special election for the 4th District following incumbent's Joseph Keaveny resignation after having been appointed administrative law judge at the Department of Labor on July 7, 2016. The primary was held on August 2, 2016. Prior to the election 25 seats were held by Republicans and 9 were held by Democrats. The general election saw both parties holding on to the same amount of seats as the previous election, meaning that Republicans retained control of the Missouri Senate.
Predictions SourceRankingAs of Governing | October 12, 2016
Retirements 15th District: Eric Schmitt (R) was term-limited. 19th District: Kurt Schaefer (R) was term-limited. 21st District: David Pearce (R) was term-limited.
Closest races Seats where the margin of victory was under 10%:
4th District Special election
Results 1st District
3rd District
5th District
7th District
9th District
11th District
13th District
15th District
17th District
19th District
21st District
23rd District
25th District
27th District
29th District
31st District
33rd District
References