The primaries and general election coincided with those for House and those for state elections, but not those for president.[1] Primaries were held September 15, 1920.[1]
In 1916, incumbent Lawrence Yates Sherman made the decision to retire from politics and to not seek reelection in 1920, due to his failing hearing, which prevented him from hearing what was said on the Senate floor.[2]
Burke, known as "O.K. Bobby" by supporters, stood on a platform opposed to the League of Nations and ratification of the Treaty of Versailles. He was also opposed to Prohibition and critical of President Wilson.[3] Waller had the support of the Democratic establishment.[3] Neither ran an active campaign.[3]