Tulsa voters this week effectively locked Republicans out of the city’s mayoral election in November.

Two Democrats - state representative Monroe Nichols and Tulsa County Commissioner Karen Keith - advanced to the runoff on Nov. 5 by narrowly defeating Republican Brent Van Norman by the slimmest of margins. The result guarantees Tulsa will have a Democrat mayor for the first time since Kathy Taylor left office in 2009.

On this episode of Listen Frontier, we talk with Nichols and Keith about the result, what it means for Tulsa, and how the race changes now that it’s transitioned to a head-to-head battle.