FILE—In this Aug. 4, 2019 file photo, Dayton Mayor Nan Whaley speaks during a news conference regarding a mass shooting in Dayton, Ohio. Whaley announced Monday April 19, 2021, she will try to unseat Ohio's Republican governor after her effort to work with him on gun reforms in the aftermath of a mass shooting in her city stalled. (AP Photo/John Minchillo, File)

FILE—In this Dec. 19, 2019 file photo, Dayton mayor Nan Whaley talks in her office in Dayton, Ohio. Whaley announced Monday April 19, 2021, she will try to unseat Ohio's Republican governor after her effort to work with him on gun reforms in the aftermath of a mass shooting in her city stalled. (AP Photo/Daniel Sewell, File)

FILE - In this Aug. 6, 2019 file photo, Dayton, Ohio, Mayor Nan Whaley speaks to members of the media outside Ned Peppers bar in the Oregon District in Dayton, Ohio. Whaley announced Monday April 19, 2021, she will try to unseat Ohio's Republican governor after her effort to work with him on gun reforms in the aftermath of a mass shooting in her city stalled. (AP Photo/John Minchillo, File)

FILE— In this Aug. 6, 2019 file photo, Dayton, Ohio, Mayor Nan Whaley speaks to members of the media outside Ned Peppers bar in the Oregon in Dayton, Ohio. Whaley announced Monday April 19, 2021, she will try to unseat Ohio's Republican governor after her effort to work with him on gun reforms in the aftermath of a mass shooting in her city stalled. (AP Photo/John Minchillo, File)