In November 2018, 28 candidates for Governor of Tennessee will be on the ballot. For regularly-scheduled statewide general elections, this is the greatest number of candidates on a government-printed ballot in U.S. history, for a particular office.
The main reason there are so many candidates in the Tennessee Governor’s race is that the Libertarian Party placed fifteen candidates on the ballot, using the independent procedure, which only needs 25 signatures, and no filing fee. Also one Green filed, plus ten bona fide independents.
Libertarians took this action to draw attention to the irrational ballot access laws of Tennessee. The petition to create a party requires signatures equal to 2.5% of the last gubernatorial vote, a petition so difficult that it hasn’t been successfully used since 1968. Libertarians this year actually tried to get 23 gubernatorial candidates on the ballot, using the independent procedure, but not all of them qualified.
The previous high number of candidates in a regularly-scheduled statewide general election was for president in Colorado in November 2016. That ballot had 22 presidential candidates. Colorado does not require a petition to get on the ballot for president in November; it just requires a $1,000 fee.
Here is a link to the Tennessee Secretary of State’s web page, listing the November 2018 candidates. The press in Tennessee has almost entirely ignored the number of candidates on the ballot.