Nathan Johnson Photo: WNAX Incumbents Nathan Johnson and Bridget Benson were reelected to the Yankton City Commission this week along with newcomer Mike Villanueva. Johnson says he appreciates the outcome…. Johnson, who has been Mayor for the past two years, says he continues to look long term… The city was hit with destructive flooding in 2019 and then endured the pandemic most of last year. Johnson says there were lessons in each of those episodes.. Johnson says he doesn’t plan to seek another one-year term as Mayor. Tags: Recent Headlines