Sen. Morse was one of only two Senators (!) who opposed the Gulf of Tonkin Resolution, which authorized President Johnson to take military action in Vietnam without a declaration of war.
The Tonkin Resolution was the official start of the Vietnam war.
The war brought death to millions of civilians and several hundred thousand soldiers, not to speak of the wounded, the crippeled and the mentally disturbed.
- Forever Middle-East – Sen. Wayne Morse Talks About The Suez Canal And American Foreign Policy – 1957 – Past Daily Reference Room (pastdaily.com)