A special election for the Louisiana State Treasurer is set for October 14, 2017. Former treasurer John Kennedy vacated the position when he was elected to the U.S. Senate in 2016.

The race to fill the seat marks the first time the treasurer’s office has not had an incumbent running since Kennedy was elected 17 years ago.

Five contenders filed this week when the candidate registration period opened. The special election is creating an unforeseen expense for the state, costing taxpayers nearly $5 million, as Louisiana had no other statewide races scheduled this year.

The office is being run by Kennedy’s top assistant until the fall election.