To adopt resolution of ratification on treaty to maintain the rio grande and colorado river as the international boundary between the U.S. And mexico. (ex. B,

On Nov 29, 1971, the Senate voted 79–0. Result: passed. By party: Democrats 45–0, Republicans 38–0, Others 1–0, Independents 1–0. It was a bipartisan vote: majorities of both parties voted yes.

During the 92nd Congress (1971–1972), Richard Nixon was president, and Democrats held majorities in both the House and Senate.

Yes: 79
No: 0
Did not vote: 17
Date: Nov 29, 1971

By party

Democrats45 yes · 0 no · 10 didn’t vote
Republicans38 yes · 0 no · 7 didn’t vote
Others1 yes · 0 no
Independents1 yes · 0 no

Who broke with their party

Every member who voted sided with their party's majority.

How each senator voted: Yes

Did not vote

Other votes

From Voteview roll call records.

Cite or embed this page

Capitol Receipts, “To adopt resolution of ratification on…: Senate Vote, Nov 29, 1971,” https://www.capitolreceipts.com/vote/92-S-369/to-adopt-resolution-of-ratification-on-treaty-to-maintain (accessed 2026-10-17).