A South Dakota Senate candidate has been charged with child abuse involving sexual grooming.

The Attorney General’s Office is alleging that Joel Koskan, a 44-year-old Republican candidate for state Legislature in District 26, sexually groomed a minor over the course of six years, according to a criminal compliant made Thursday in Mellette County. The charge is one count of exposing a minor to foreseeable harm, a class 4 felony that could land Koskan behind bars for up to 10 years.