Hargis was elected as a Democrat to the Eighty-sixth Congress (January 3, 1959 – January 3, 1961). He was an unsuccessful candidate for reelection in 1960 to the Eighty-seventh Congress.
Hargis won a seat as a Democrat in the Eighty-sixth Congress from January 3, 1959, to January 3, 1961. However, he failed to secure his position in the Eighty-seventh Congress during the 1960 election.