Perry said on Thursday it would have been "very difficult" to take a commercial. The investigations have also revealed a divide between the worth of $26 million who used to sit on the boards of. The investigations come after it was discovered that the administration has. In a letter on Thursday to the Energy Departments inspector general, Pallone. The inspector general launched its first investigation into Mnuchins private flights in September That probe focuses on a flight on a government plane that Mnuchin and his wife took in August to Kentucky that coincided with the solar eclipse. He cited the troubling pattern of Pruitt and other Cabinet officials taking private. Interior Department investigators are probing Secretary Ryan Zinkes use of private charter flights Zinke disclosed last week that he has taken three charter flights, including a $12,375 latenight trip from Las Vegas to his home state of. A leading Democratic congressman wants answers from Kellyanne Conway, the counselor to President Donald Trump,. Federal investigators are examining Health and Human Services Secretary Tom Prices recent use of costly charter flights on the taxpayers dime for official business The HHS inspector generals office said Friday the agency is. Story Continued Below Price continued to take charter jets after a POLITICO investigation identified that the HHS Price has taken at least 26 flights on.