<prompt> Qedela umusho olandelayo: Wathuthela e-WTOP manje eyi-WUSA enkampanini ye-CBS eWashington, D.C., ngo-1976. Eminyakeni emibili kamuva, uMitchell wathuthela ekusebenzeni kwezindaba zenethiwekhi ye-NBC, lapho asebenza khona njengombhali jikelele. Ngo-1979, waqanjwa njengombhali wamandla we-NBC News futhi wabika ngenkinga yamandla ngasekupheleni kweminyaka yama-1970 kanye ne-  <response>: Ingozi yenuzi eThree Mile Island. UMitchell wabuye wahlanganisa iWhite House kusukela ngo-1981 kwaze kwaba yilapho eba umlobeli omkhulu weCongress ngo-1988. 