Mezue ahịrịokwu na-esonụ: Ọ kwagara CBS-mmekọ WTOP (ugbu a WUSA) na Washington, D.C., na 1976. Afọ abụọ mgbe nke ahụ gasịrị, Mitchell kwagara NBC's network news operation, ebe o jere ozi dị ka onye nnọchi anya izugbe. N'afọ 1979, a họpụtara ya dịka onye ntaakụkọ ike nke NBC News ma kọọ akụkọ banyere nsogbu ike nke afọ 1970 na
Ihe mberede nuklia nke Three Mile Island. Mitchell dekwara White House site na 1981 ruo mgbe ọ ghọrọ onye isi ndị nnọchiteanya na 1988.