To amend the Treaty to provide for a clear definition of rail-mobile missiles.

On Dec 21, 2010, the Senate voted 32–63 on “On the Amendment” (TREATYDOC 1115). Result: Amendment Rejected. By party: Democrats 0–55, Republicans 32–7, Independents 0–1. It was a split vote: the parties took opposite sides, with some members crossing over. 7 members voted against their own party.

During the 111th Congress (2009–2010), Barack Obama was president, and Democrats held majorities in both the House and Senate.

Result: Amendment Rejected
Yes: 32
No: 63
Did not vote: 16
Date: Dec 21, 2010

By party

Republicans32 yes · 7 no · 5 didn’t vote
Democrats0 yes · 55 no · 11 didn’t vote
Independents0 yes · 1 no

Who broke with their party

Lisa Murkowski R-AK voted no
Richard Green Lugar R-IN voted no
Susan Margaret Collins R-ME voted no
George Victor Voinovich R-OH voted no
Lamar Alexander R-TN voted no
Robert (Bob) Corker R-TN voted no
Robert Foster (Bob) Bennett R-UT voted no

How each senator voted: Yes

Jefferson Beauregard (Jeff) Sessions III R-AL
Richard C. Shelby R-AL
John Sidney Mccain III R-AZ
Jon Llewellyn Kyl R-AZ
George S. Lemieux R-FL
Johnny Isakson R-GA
Saxby Chambliss R-GA
Charles Ernest Grassley R-IA
James Risch R-ID
Michael Dean Crapo R-ID
Mark Steven Kirk R-IL
Charles Patrick (Pat) Roberts R-KS
Addison Mitchell (Mitch) Mcconnell R-KY
James Paul David Bunning R-KY
David Vitter R-LA
Scott P. Brown R-MA
Olympia Jean Snowe R-ME
Roger F. Wicker R-MS
William Thad Cochran R-MS
Richard M. Burr R-NC
Mike Johanns R-NE
John Eric Ensign R-NV
James Mountain Inhofe R-OK
Thomas Allen Coburn R-OK
James W. Demint R-SC
Lindsey O. Graham R-SC
John Thune R-SD
John Cornyn R-TX
Kathryn Ann Bailey (Kay) Hutchison R-TX
Orrin Grant Hatch R-UT
John A. Barrasso R-WY
Michael B. Enzi R-WY

How each senator voted: No

Did not vote

Other votes

From Voteview roll call records.

Cite or embed this page

Capitol Receipts, “To amend the Treaty to provide for a clear…: Senate Vote, Dec 21, 2010,” https://www.capitolreceipts.com/vote/111-S-690/to-amend-the-treaty-to-provide-for-a-clear (accessed 2026-10-17).