Kunkle's wife, Sarah Dodd, told NBC DFW's Ken Kalthoff Monday morning that her husband was filing campaign papers today to designate a campaign treasurer and will be running for Dallas mayor.
Kunkle spoke with Kalthoff last week where he said the cat was out of the bag and that he was indeed considering a campaign for the top office in the city.
"What my intent is, is to try to determine in the next two weeks how broad and deep my support is and whether I can raise enough money to run a city-wide campaign," Kunkle said. "I feel very confident within the neighborhoods throughout the city, that I will enjoy a lot of support."
While Kunkle wouldn't confirm that he was going to run last week, he did say that he wouldn't be at the exploratory stage unless he was serious about his shot at the office.
Since leaving as the city's top cop in April of last year, Kunkle accepted a position with the University of North Texas Dallas campus as the "executive in residence" for the W.W. Caruth Jr. Police Institute.
Councilmember Ron Natinsky and Dallas Attorney Jim Moore have announced they are running for mayor. Several other people have said they are considering campaigns including Dallas Councilmember Angela Hunt.
Current Dallas Mayor Tom Leppert has said he will not seek reelection.
NBCDFW's Ken Kalthoff and Shane Allen contributed to this report.