Authorities in Oklahoma have opened an investigation after two members of the State Board of Education said they saw images of naked women on a television screen in the office of state School Superintendent Ryan Walters.

Ryan Walters, Oklahoma’s top education official, is under investigation after board members say explicit images appeared on a TV in his office during a closed meeting.

Oklahoma residents and lawmakers have called for Walters' impeachment several times this year, but how does that process work? Is it even applicable?

A memo from the state Office of Management and Enterprise Services provides insight into the early stages of an investigation into Ryan Walters.

The Oklahoma County District Attorney's Office on Wednesday requested the assistance of the Oklahoma State Bureau of Investigation (OSBI) in the ongoing investigation into allegations of explicit nude images played on a TV in State Superintendent Ryan Walters' office during a state school board meeting on July 24.