During the First World War, he served as a Sergeant in the U.S. Army Fourth Antiaircraft Machine Gun Battalion in the American Expeditionary Forces.

[1][2] Dworshak became a public figure when he was elected president of the Idaho Editorial Association in 1931, and he was a prominent member of the American Legion and Rotary International.

[1] Republican senator John Thomas died in office in November 1945, and Democratic governor Charles C. Gossett resigned to accept an appointment (by his successor) to fill the seat.

[8] Source:[9] ^Dworshak was appointed to the vacant seat in November 1946 and October 1949 Dworshak died in office of a heart attack on July 23, 1962, at his home in Washington, D.C.,[1] and was buried at Arlington National Cemetery.

[2][10] His obituary described him as "...a staunchly conservative voice on Capitol Hill..."[2][11] He was succeeded by former governor Len B. Jordan, who served until January 1973.