By the spring, there was a strong impetus to call a halt to this and other military involvement in Indochina, absent specific congressional approval. By an overwhelming 67–15 roll call vote on June 14, the US Senate added such an amendment to a State Department authorization bill, with over half of the Republicans voting “Aye.” The following week, the House of Representatives—historically reluctant to challenge the White House—passed their own anti-bombing measure by voice vote.
