Question: The 1974 United States Senate election in Oregon, was held on November 5, 1974, which Incumbent Republican U.S. Senator, from Oregon, won re-election to a second term?
Sentence (from "United States Senate election in Oregon, 1974"): Betty Roberts was chosen to replace former U.S. Senator Wayne Morse, who won the Democratic primary but died before the general election.
Relevant evidence: No