Complex sentence: An unsuccessful candidate for the Republican nomination to the Seventy-fifth Congress in 1936, he was elected as a Republican to the United States Senate in 1946, reelected in 1952 and served from January 3 1947, to January 3 1959.
Split into simpler sentences: An unsuccessful candidate for the Republican nomination to the Seventy-fifth Congress in 1936, Watkins was elected as a Republican to the United States Senate in 1946, and reelected in 1952. He served from January 3 1947, to January 3 1959.