<prompt> Ramba uchiverenga ndima iyi - Akatamira kuWTOP yava kunzi WUSA yeCBS muWashington, D.C., muna 1976. Makore maviri gare gare, Mitchell akatamira kuNBCs network news operation, kwaakashanda semunyori mukuru. Muna 1979, akanzi NBC News simba munyori uye akashuma pamusoro mukupera-1970s simba dambudziko uye Three Mile Island yenyukireya tsaona  <response>: . Mitchell akafukidzawo White House kubva muna 1981 kusvikira ava munyori mukuru weCongress muna 1988. 